Solve for x
x=\frac{7}{20}=0.35
Graph
Share
Copied to clipboard
-2x-10x-\left(-7x\right)+4x=12x-6+3-4+7x
Combine -6x and 4x to get -2x.
-12x-\left(-7x\right)+4x=12x-6+3-4+7x
Combine -2x and -10x to get -12x.
-12x+7x+4x=12x-6+3-4+7x
The opposite of -7x is 7x.
-5x+4x=12x-6+3-4+7x
Combine -12x and 7x to get -5x.
-x=12x-6+3-4+7x
Combine -5x and 4x to get -x.
-x=12x-3-4+7x
Add -6 and 3 to get -3.
-x=12x-7+7x
Subtract 4 from -3 to get -7.
-x=19x-7
Combine 12x and 7x to get 19x.
-x-19x=-7
Subtract 19x from both sides.
-20x=-7
Combine -x and -19x to get -20x.
x=\frac{-7}{-20}
Divide both sides by -20.
x=\frac{7}{20}
Fraction \frac{-7}{-20} can be simplified to \frac{7}{20} by removing the negative sign from both the numerator and the denominator.
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}