Solve for x
x=6
Graph
Share
Copied to clipboard
4\times 4x-3\left(-\frac{5x}{6}+13\right)=72
Multiply both sides of the equation by 12, the least common multiple of 3,4.
16x-3\left(-\frac{5x}{6}+13\right)=72
Multiply 4 and 4 to get 16.
16x-3\left(-\frac{5x}{6}\right)-39=72
Use the distributive property to multiply -3 by -\frac{5x}{6}+13.
16x+3\times \frac{5x}{6}-39=72
Multiply -3 and -1 to get 3.
16x+\frac{5x}{2}-39=72
Cancel out 6, the greatest common factor in 3 and 6.
16x+\frac{5x}{2}=72+39
Add 39 to both sides.
16x+\frac{5x}{2}=111
Add 72 and 39 to get 111.
32x+5x=222
Multiply both sides of the equation by 2.
37x=222
Combine 32x and 5x to get 37x.
x=\frac{222}{37}
Divide both sides by 37.
x=6
Divide 222 by 37 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}