20 \times 22 \% +x=40 \% (20+x)
Solve for x
x=6
Graph
Share
Copied to clipboard
20\times \frac{11}{50}+x=\frac{40}{100}\left(20+x\right)
Reduce the fraction \frac{22}{100} to lowest terms by extracting and canceling out 2.
\frac{20\times 11}{50}+x=\frac{40}{100}\left(20+x\right)
Express 20\times \frac{11}{50} as a single fraction.
\frac{220}{50}+x=\frac{40}{100}\left(20+x\right)
Multiply 20 and 11 to get 220.
\frac{22}{5}+x=\frac{40}{100}\left(20+x\right)
Reduce the fraction \frac{220}{50} to lowest terms by extracting and canceling out 10.
\frac{22}{5}+x=\frac{2}{5}\left(20+x\right)
Reduce the fraction \frac{40}{100} to lowest terms by extracting and canceling out 20.
\frac{22}{5}+x=\frac{2}{5}\times 20+\frac{2}{5}x
Use the distributive property to multiply \frac{2}{5} by 20+x.
\frac{22}{5}+x=\frac{2\times 20}{5}+\frac{2}{5}x
Express \frac{2}{5}\times 20 as a single fraction.
\frac{22}{5}+x=\frac{40}{5}+\frac{2}{5}x
Multiply 2 and 20 to get 40.
\frac{22}{5}+x=8+\frac{2}{5}x
Divide 40 by 5 to get 8.
\frac{22}{5}+x-\frac{2}{5}x=8
Subtract \frac{2}{5}x from both sides.
\frac{22}{5}+\frac{3}{5}x=8
Combine x and -\frac{2}{5}x to get \frac{3}{5}x.
\frac{3}{5}x=8-\frac{22}{5}
Subtract \frac{22}{5} from both sides.
\frac{3}{5}x=\frac{40}{5}-\frac{22}{5}
Convert 8 to fraction \frac{40}{5}.
\frac{3}{5}x=\frac{40-22}{5}
Since \frac{40}{5} and \frac{22}{5} have the same denominator, subtract them by subtracting their numerators.
\frac{3}{5}x=\frac{18}{5}
Subtract 22 from 40 to get 18.
x=\frac{18}{5}\times \frac{5}{3}
Multiply both sides by \frac{5}{3}, the reciprocal of \frac{3}{5}.
x=\frac{18\times 5}{5\times 3}
Multiply \frac{18}{5} times \frac{5}{3} by multiplying numerator times numerator and denominator times denominator.
x=\frac{18}{3}
Cancel out 5 in both numerator and denominator.
x=6
Divide 18 by 3 to get 6.
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}