Solve for x
x=-16
Graph
Share
Copied to clipboard
8x-56+3x=8\left(2x+3\right)
Use the distributive property to multiply 8 by x-7.
11x-56=8\left(2x+3\right)
Combine 8x and 3x to get 11x.
11x-56=16x+24
Use the distributive property to multiply 8 by 2x+3.
11x-56-16x=24
Subtract 16x from both sides.
-5x-56=24
Combine 11x and -16x to get -5x.
-5x=24+56
Add 56 to both sides.
-5x=80
Add 24 and 56 to get 80.
x=\frac{80}{-5}
Divide both sides by -5.
x=-16
Divide 80 by -5 to get -16.
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}