Solve for x
x=\frac{4}{25}=0.16
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9x\left(\frac{28}{3}-\frac{5}{9}\times \frac{3}{10}\right)=11+\frac{11}{5}
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by x.
9x\left(\frac{28}{3}-\frac{5\times 3}{9\times 10}\right)=11+\frac{11}{5}
Multiply \frac{5}{9} times \frac{3}{10} by multiplying numerator times numerator and denominator times denominator.
9x\left(\frac{28}{3}-\frac{15}{90}\right)=11+\frac{11}{5}
Do the multiplications in the fraction \frac{5\times 3}{9\times 10}.
9x\left(\frac{28}{3}-\frac{1}{6}\right)=11+\frac{11}{5}
Reduce the fraction \frac{15}{90} to lowest terms by extracting and canceling out 15.
9x\left(\frac{56}{6}-\frac{1}{6}\right)=11+\frac{11}{5}
Least common multiple of 3 and 6 is 6. Convert \frac{28}{3} and \frac{1}{6} to fractions with denominator 6.
9x\times \frac{56-1}{6}=11+\frac{11}{5}
Since \frac{56}{6} and \frac{1}{6} have the same denominator, subtract them by subtracting their numerators.
9x\times \frac{55}{6}=11+\frac{11}{5}
Subtract 1 from 56 to get 55.
\frac{9\times 55}{6}x=11+\frac{11}{5}
Express 9\times \frac{55}{6} as a single fraction.
\frac{495}{6}x=11+\frac{11}{5}
Multiply 9 and 55 to get 495.
\frac{165}{2}x=11+\frac{11}{5}
Reduce the fraction \frac{495}{6} to lowest terms by extracting and canceling out 3.
\frac{165}{2}x=\frac{55}{5}+\frac{11}{5}
Convert 11 to fraction \frac{55}{5}.
\frac{165}{2}x=\frac{55+11}{5}
Since \frac{55}{5} and \frac{11}{5} have the same denominator, add them by adding their numerators.
\frac{165}{2}x=\frac{66}{5}
Add 55 and 11 to get 66.
x=\frac{66}{5}\times \frac{2}{165}
Multiply both sides by \frac{2}{165}, the reciprocal of \frac{165}{2}.
x=\frac{66\times 2}{5\times 165}
Multiply \frac{66}{5} times \frac{2}{165} by multiplying numerator times numerator and denominator times denominator.
x=\frac{132}{825}
Do the multiplications in the fraction \frac{66\times 2}{5\times 165}.
x=\frac{4}{25}
Reduce the fraction \frac{132}{825} to lowest terms by extracting and canceling out 33.
Examples
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4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
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Matrix
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}