70 \% x+ \frac{ { 6 }^{ 2 } }{ 7 } =x
Solve for x
x = \frac{120}{7} = 17\frac{1}{7} \approx 17.142857143
Graph
Share
Copied to clipboard
\frac{7}{10}x+\frac{6^{2}}{7}=x
Reduce the fraction \frac{70}{100} to lowest terms by extracting and canceling out 10.
\frac{7}{10}x+\frac{36}{7}=x
Calculate 6 to the power of 2 and get 36.
\frac{7}{10}x+\frac{36}{7}-x=0
Subtract x from both sides.
-\frac{3}{10}x+\frac{36}{7}=0
Combine \frac{7}{10}x and -x to get -\frac{3}{10}x.
-\frac{3}{10}x=-\frac{36}{7}
Subtract \frac{36}{7} from both sides. Anything subtracted from zero gives its negation.
x=-\frac{36}{7}\left(-\frac{10}{3}\right)
Multiply both sides by -\frac{10}{3}, the reciprocal of -\frac{3}{10}.
x=\frac{-36\left(-10\right)}{7\times 3}
Multiply -\frac{36}{7} times -\frac{10}{3} by multiplying numerator times numerator and denominator times denominator.
x=\frac{360}{21}
Do the multiplications in the fraction \frac{-36\left(-10\right)}{7\times 3}.
x=\frac{120}{7}
Reduce the fraction \frac{360}{21} to lowest terms by extracting and canceling out 3.
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}