Solve for x
x=-5.5
Graph
Share
Copied to clipboard
\frac{0.2x}{0.3}+\frac{-0.1}{0.3}=\frac{0.1x+0.4}{0.05}-1
Divide each term of 0.2x-0.1 by 0.3 to get \frac{0.2x}{0.3}+\frac{-0.1}{0.3}.
\frac{2}{3}x+\frac{-0.1}{0.3}=\frac{0.1x+0.4}{0.05}-1
Divide 0.2x by 0.3 to get \frac{2}{3}x.
\frac{2}{3}x+\frac{-1}{3}=\frac{0.1x+0.4}{0.05}-1
Expand \frac{-0.1}{0.3} by multiplying both numerator and the denominator by 10.
\frac{2}{3}x-\frac{1}{3}=\frac{0.1x+0.4}{0.05}-1
Fraction \frac{-1}{3} can be rewritten as -\frac{1}{3} by extracting the negative sign.
\frac{2}{3}x-\frac{1}{3}=\frac{0.1x}{0.05}+\frac{0.4}{0.05}-1
Divide each term of 0.1x+0.4 by 0.05 to get \frac{0.1x}{0.05}+\frac{0.4}{0.05}.
\frac{2}{3}x-\frac{1}{3}=2x+\frac{0.4}{0.05}-1
Divide 0.1x by 0.05 to get 2x.
\frac{2}{3}x-\frac{1}{3}=2x+\frac{40}{5}-1
Expand \frac{0.4}{0.05} by multiplying both numerator and the denominator by 100.
\frac{2}{3}x-\frac{1}{3}=2x+8-1
Divide 40 by 5 to get 8.
\frac{2}{3}x-\frac{1}{3}=2x+7
Subtract 1 from 8 to get 7.
\frac{2}{3}x-\frac{1}{3}-2x=7
Subtract 2x from both sides.
-\frac{4}{3}x-\frac{1}{3}=7
Combine \frac{2}{3}x and -2x to get -\frac{4}{3}x.
-\frac{4}{3}x=7+\frac{1}{3}
Add \frac{1}{3} to both sides.
-\frac{4}{3}x=\frac{21}{3}+\frac{1}{3}
Convert 7 to fraction \frac{21}{3}.
-\frac{4}{3}x=\frac{21+1}{3}
Since \frac{21}{3} and \frac{1}{3} have the same denominator, add them by adding their numerators.
-\frac{4}{3}x=\frac{22}{3}
Add 21 and 1 to get 22.
x=\frac{\frac{22}{3}}{-\frac{4}{3}}
Divide both sides by -\frac{4}{3}.
x=\frac{22}{3\left(-\frac{4}{3}\right)}
Express \frac{\frac{22}{3}}{-\frac{4}{3}} as a single fraction.
x=\frac{22}{-4}
Multiply 3 and -\frac{4}{3} to get -4.
x=-\frac{11}{2}
Reduce the fraction \frac{22}{-4} to lowest terms by extracting and canceling out 2.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
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}