Solve for x
x=1
Graph
Share
Copied to clipboard
12-4x-14\left(x-2\right)-15=15-8x
Use the distributive property to multiply 4 by 3-x.
12-4x-14x+28-15=15-8x
Use the distributive property to multiply -14 by x-2.
12-18x+28-15=15-8x
Combine -4x and -14x to get -18x.
40-18x-15=15-8x
Add 12 and 28 to get 40.
25-18x=15-8x
Subtract 15 from 40 to get 25.
25-18x+8x=15
Add 8x to both sides.
25-10x=15
Combine -18x and 8x to get -10x.
-10x=15-25
Subtract 25 from both sides.
-10x=-10
Subtract 25 from 15 to get -10.
x=\frac{-10}{-10}
Divide both sides by -10.
x=1
Divide -10 by -10 to get 1.
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}