Solve for x
x=\frac{6}{13}\approx 0.461538462
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-5\times 3x-10x=x-12
Multiply both sides of the equation by 10, the least common multiple of 2,10,5.
-15x-10x=x-12
Multiply -5 and 3 to get -15.
-25x=x-12
Combine -15x and -10x to get -25x.
-25x-x=-12
Subtract x from both sides.
-26x=-12
Combine -25x and -x to get -26x.
x=\frac{-12}{-26}
Divide both sides by -26.
x=\frac{6}{13}
Reduce the fraction \frac{-12}{-26} to lowest terms by extracting and canceling out -2.
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}