0.6 - \frac { x + 1 } { x } \times 10 \% \times 40 \% - \frac { 1 \% } { x } = 0.4
Solve for x
x=0.3125
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100x\left(0.6-\frac{x+1}{x}\times \frac{10}{100}\times \frac{40}{100}\right)-100\times \frac{1}{100}=40x
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 100x, the least common multiple of x,100.
100x\left(0.6-\frac{x+1}{x}\times \frac{1}{10}\times \frac{40}{100}\right)-100\times \frac{1}{100}=40x
Reduce the fraction \frac{10}{100} to lowest terms by extracting and canceling out 10.
100x\left(0.6-\frac{x+1}{x}\times \frac{1}{10}\times \frac{2}{5}\right)-100\times \frac{1}{100}=40x
Reduce the fraction \frac{40}{100} to lowest terms by extracting and canceling out 20.
100x\left(0.6-\frac{x+1}{x}\times \frac{1\times 2}{10\times 5}\right)-100\times \frac{1}{100}=40x
Multiply \frac{1}{10} times \frac{2}{5} by multiplying numerator times numerator and denominator times denominator.
100x\left(0.6-\frac{x+1}{x}\times \frac{2}{50}\right)-100\times \frac{1}{100}=40x
Do the multiplications in the fraction \frac{1\times 2}{10\times 5}.
100x\left(0.6-\frac{x+1}{x}\times \frac{1}{25}\right)-100\times \frac{1}{100}=40x
Reduce the fraction \frac{2}{50} to lowest terms by extracting and canceling out 2.
100x\left(0.6-\frac{x+1}{x\times 25}\right)-100\times \frac{1}{100}=40x
Multiply \frac{x+1}{x} times \frac{1}{25} by multiplying numerator times numerator and denominator times denominator.
60x+100x\left(-\frac{x+1}{x\times 25}\right)-100\times \frac{1}{100}=40x
Use the distributive property to multiply 100x by 0.6-\frac{x+1}{x\times 25}.
60x+\frac{-100\left(x+1\right)}{x\times 25}x-100\times \frac{1}{100}=40x
Express 100\left(-\frac{x+1}{x\times 25}\right) as a single fraction.
60x+\frac{-4\left(x+1\right)}{x}x-100\times \frac{1}{100}=40x
Cancel out 25 in both numerator and denominator.
60x+\frac{-4\left(x+1\right)x}{x}-100\times \frac{1}{100}=40x
Express \frac{-4\left(x+1\right)}{x}x as a single fraction.
60x+\frac{-4\left(x+1\right)x}{x}-1=40x
Multiply -100 times \frac{1}{100}.
\frac{\left(60x-1\right)x}{x}+\frac{-4\left(x+1\right)x}{x}=40x
To add or subtract expressions, expand them to make their denominators the same. Multiply 60x-1 times \frac{x}{x}.
\frac{\left(60x-1\right)x-4\left(x+1\right)x}{x}=40x
Since \frac{\left(60x-1\right)x}{x} and \frac{-4\left(x+1\right)x}{x} have the same denominator, add them by adding their numerators.
\frac{60x^{2}-x-4x^{2}-4x}{x}=40x
Do the multiplications in \left(60x-1\right)x-4\left(x+1\right)x.
\frac{56x^{2}-5x}{x}=40x
Combine like terms in 60x^{2}-x-4x^{2}-4x.
\frac{56x^{2}-5x}{x}-40x=0
Subtract 40x from both sides.
\frac{56x^{2}-5x}{x}+\frac{-40xx}{x}=0
To add or subtract expressions, expand them to make their denominators the same. Multiply -40x times \frac{x}{x}.
\frac{56x^{2}-5x-40xx}{x}=0
Since \frac{56x^{2}-5x}{x} and \frac{-40xx}{x} have the same denominator, add them by adding their numerators.
\frac{56x^{2}-5x-40x^{2}}{x}=0
Do the multiplications in 56x^{2}-5x-40xx.
\frac{16x^{2}-5x}{x}=0
Combine like terms in 56x^{2}-5x-40x^{2}.
16x^{2}-5x=0
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by x.
x\left(16x-5\right)=0
Factor out x.
x=0 x=\frac{5}{16}
To find equation solutions, solve x=0 and 16x-5=0.
x=\frac{5}{16}
Variable x cannot be equal to 0.
100x\left(0.6-\frac{x+1}{x}\times \frac{10}{100}\times \frac{40}{100}\right)-100\times \frac{1}{100}=40x
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 100x, the least common multiple of x,100.
100x\left(0.6-\frac{x+1}{x}\times \frac{1}{10}\times \frac{40}{100}\right)-100\times \frac{1}{100}=40x
Reduce the fraction \frac{10}{100} to lowest terms by extracting and canceling out 10.
100x\left(0.6-\frac{x+1}{x}\times \frac{1}{10}\times \frac{2}{5}\right)-100\times \frac{1}{100}=40x
Reduce the fraction \frac{40}{100} to lowest terms by extracting and canceling out 20.
100x\left(0.6-\frac{x+1}{x}\times \frac{1\times 2}{10\times 5}\right)-100\times \frac{1}{100}=40x
Multiply \frac{1}{10} times \frac{2}{5} by multiplying numerator times numerator and denominator times denominator.
100x\left(0.6-\frac{x+1}{x}\times \frac{2}{50}\right)-100\times \frac{1}{100}=40x
Do the multiplications in the fraction \frac{1\times 2}{10\times 5}.
100x\left(0.6-\frac{x+1}{x}\times \frac{1}{25}\right)-100\times \frac{1}{100}=40x
Reduce the fraction \frac{2}{50} to lowest terms by extracting and canceling out 2.
100x\left(0.6-\frac{x+1}{x\times 25}\right)-100\times \frac{1}{100}=40x
Multiply \frac{x+1}{x} times \frac{1}{25} by multiplying numerator times numerator and denominator times denominator.
60x+100x\left(-\frac{x+1}{x\times 25}\right)-100\times \frac{1}{100}=40x
Use the distributive property to multiply 100x by 0.6-\frac{x+1}{x\times 25}.
60x+\frac{-100\left(x+1\right)}{x\times 25}x-100\times \frac{1}{100}=40x
Express 100\left(-\frac{x+1}{x\times 25}\right) as a single fraction.
60x+\frac{-4\left(x+1\right)}{x}x-100\times \frac{1}{100}=40x
Cancel out 25 in both numerator and denominator.
60x+\frac{-4\left(x+1\right)x}{x}-100\times \frac{1}{100}=40x
Express \frac{-4\left(x+1\right)}{x}x as a single fraction.
60x+\frac{-4\left(x+1\right)x}{x}-1=40x
Multiply -100 times \frac{1}{100}.
\frac{\left(60x-1\right)x}{x}+\frac{-4\left(x+1\right)x}{x}=40x
To add or subtract expressions, expand them to make their denominators the same. Multiply 60x-1 times \frac{x}{x}.
\frac{\left(60x-1\right)x-4\left(x+1\right)x}{x}=40x
Since \frac{\left(60x-1\right)x}{x} and \frac{-4\left(x+1\right)x}{x} have the same denominator, add them by adding their numerators.
\frac{60x^{2}-x-4x^{2}-4x}{x}=40x
Do the multiplications in \left(60x-1\right)x-4\left(x+1\right)x.
\frac{56x^{2}-5x}{x}=40x
Combine like terms in 60x^{2}-x-4x^{2}-4x.
\frac{56x^{2}-5x}{x}-40x=0
Subtract 40x from both sides.
\frac{56x^{2}-5x}{x}+\frac{-40xx}{x}=0
To add or subtract expressions, expand them to make their denominators the same. Multiply -40x times \frac{x}{x}.
\frac{56x^{2}-5x-40xx}{x}=0
Since \frac{56x^{2}-5x}{x} and \frac{-40xx}{x} have the same denominator, add them by adding their numerators.
\frac{56x^{2}-5x-40x^{2}}{x}=0
Do the multiplications in 56x^{2}-5x-40xx.
\frac{16x^{2}-5x}{x}=0
Combine like terms in 56x^{2}-5x-40x^{2}.
16x^{2}-5x=0
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by x.
x=\frac{-\left(-5\right)±\sqrt{\left(-5\right)^{2}}}{2\times 16}
This equation is in standard form: ax^{2}+bx+c=0. Substitute 16 for a, -5 for b, and 0 for c in the quadratic formula, \frac{-b±\sqrt{b^{2}-4ac}}{2a}.
x=\frac{-\left(-5\right)±5}{2\times 16}
Take the square root of \left(-5\right)^{2}.
x=\frac{5±5}{2\times 16}
The opposite of -5 is 5.
x=\frac{5±5}{32}
Multiply 2 times 16.
x=\frac{10}{32}
Now solve the equation x=\frac{5±5}{32} when ± is plus. Add 5 to 5.
x=\frac{5}{16}
Reduce the fraction \frac{10}{32} to lowest terms by extracting and canceling out 2.
x=\frac{0}{32}
Now solve the equation x=\frac{5±5}{32} when ± is minus. Subtract 5 from 5.
x=0
Divide 0 by 32.
x=\frac{5}{16} x=0
The equation is now solved.
x=\frac{5}{16}
Variable x cannot be equal to 0.
100x\left(0.6-\frac{x+1}{x}\times \frac{10}{100}\times \frac{40}{100}\right)-100\times \frac{1}{100}=40x
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 100x, the least common multiple of x,100.
100x\left(0.6-\frac{x+1}{x}\times \frac{1}{10}\times \frac{40}{100}\right)-100\times \frac{1}{100}=40x
Reduce the fraction \frac{10}{100} to lowest terms by extracting and canceling out 10.
100x\left(0.6-\frac{x+1}{x}\times \frac{1}{10}\times \frac{2}{5}\right)-100\times \frac{1}{100}=40x
Reduce the fraction \frac{40}{100} to lowest terms by extracting and canceling out 20.
100x\left(0.6-\frac{x+1}{x}\times \frac{1\times 2}{10\times 5}\right)-100\times \frac{1}{100}=40x
Multiply \frac{1}{10} times \frac{2}{5} by multiplying numerator times numerator and denominator times denominator.
100x\left(0.6-\frac{x+1}{x}\times \frac{2}{50}\right)-100\times \frac{1}{100}=40x
Do the multiplications in the fraction \frac{1\times 2}{10\times 5}.
100x\left(0.6-\frac{x+1}{x}\times \frac{1}{25}\right)-100\times \frac{1}{100}=40x
Reduce the fraction \frac{2}{50} to lowest terms by extracting and canceling out 2.
100x\left(0.6-\frac{x+1}{x\times 25}\right)-100\times \frac{1}{100}=40x
Multiply \frac{x+1}{x} times \frac{1}{25} by multiplying numerator times numerator and denominator times denominator.
60x+100x\left(-\frac{x+1}{x\times 25}\right)-100\times \frac{1}{100}=40x
Use the distributive property to multiply 100x by 0.6-\frac{x+1}{x\times 25}.
60x+\frac{-100\left(x+1\right)}{x\times 25}x-100\times \frac{1}{100}=40x
Express 100\left(-\frac{x+1}{x\times 25}\right) as a single fraction.
60x+\frac{-4\left(x+1\right)}{x}x-100\times \frac{1}{100}=40x
Cancel out 25 in both numerator and denominator.
60x+\frac{-4\left(x+1\right)x}{x}-100\times \frac{1}{100}=40x
Express \frac{-4\left(x+1\right)}{x}x as a single fraction.
60x+\frac{-4\left(x+1\right)x}{x}-1=40x
Multiply -100 times \frac{1}{100}.
\frac{\left(60x-1\right)x}{x}+\frac{-4\left(x+1\right)x}{x}=40x
To add or subtract expressions, expand them to make their denominators the same. Multiply 60x-1 times \frac{x}{x}.
\frac{\left(60x-1\right)x-4\left(x+1\right)x}{x}=40x
Since \frac{\left(60x-1\right)x}{x} and \frac{-4\left(x+1\right)x}{x} have the same denominator, add them by adding their numerators.
\frac{60x^{2}-x-4x^{2}-4x}{x}=40x
Do the multiplications in \left(60x-1\right)x-4\left(x+1\right)x.
\frac{56x^{2}-5x}{x}=40x
Combine like terms in 60x^{2}-x-4x^{2}-4x.
\frac{56x^{2}-5x}{x}-40x=0
Subtract 40x from both sides.
\frac{56x^{2}-5x}{x}+\frac{-40xx}{x}=0
To add or subtract expressions, expand them to make their denominators the same. Multiply -40x times \frac{x}{x}.
\frac{56x^{2}-5x-40xx}{x}=0
Since \frac{56x^{2}-5x}{x} and \frac{-40xx}{x} have the same denominator, add them by adding their numerators.
\frac{56x^{2}-5x-40x^{2}}{x}=0
Do the multiplications in 56x^{2}-5x-40xx.
\frac{16x^{2}-5x}{x}=0
Combine like terms in 56x^{2}-5x-40x^{2}.
16x^{2}-5x=0
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by x.
\frac{16x^{2}-5x}{16}=\frac{0}{16}
Divide both sides by 16.
x^{2}-\frac{5}{16}x=\frac{0}{16}
Dividing by 16 undoes the multiplication by 16.
x^{2}-\frac{5}{16}x=0
Divide 0 by 16.
x^{2}-\frac{5}{16}x+\left(-\frac{5}{32}\right)^{2}=\left(-\frac{5}{32}\right)^{2}
Divide -\frac{5}{16}, the coefficient of the x term, by 2 to get -\frac{5}{32}. Then add the square of -\frac{5}{32} to both sides of the equation. This step makes the left hand side of the equation a perfect square.
x^{2}-\frac{5}{16}x+\frac{25}{1024}=\frac{25}{1024}
Square -\frac{5}{32} by squaring both the numerator and the denominator of the fraction.
\left(x-\frac{5}{32}\right)^{2}=\frac{25}{1024}
Factor x^{2}-\frac{5}{16}x+\frac{25}{1024}. In general, when x^{2}+bx+c is a perfect square, it can always be factored as \left(x+\frac{b}{2}\right)^{2}.
\sqrt{\left(x-\frac{5}{32}\right)^{2}}=\sqrt{\frac{25}{1024}}
Take the square root of both sides of the equation.
x-\frac{5}{32}=\frac{5}{32} x-\frac{5}{32}=-\frac{5}{32}
Simplify.
x=\frac{5}{16} x=0
Add \frac{5}{32} to both sides of the equation.
x=\frac{5}{16}
Variable x cannot be equal to 0.
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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Limits
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