Solve for x
x=5
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x+5-5\left(x-5\right)=2x
Multiply both sides of the equation by 10, the least common multiple of 10,2,5.
x+5-5x+25=2x
Use the distributive property to multiply -5 by x-5.
-4x+5+25=2x
Combine x and -5x to get -4x.
-4x+30=2x
Add 5 and 25 to get 30.
-4x+30-2x=0
Subtract 2x from both sides.
-6x+30=0
Combine -4x and -2x to get -6x.
-6x=-30
Subtract 30 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-30}{-6}
Divide both sides by -6.
x=5
Divide -30 by -6 to get 5.
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}