Solve for x
x=3
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5x-5+15x-10+1-5x=x-12-5+15x
Multiply both sides of the equation by 5.
20x-5-10+1-5x=x-12-5+15x
Combine 5x and 15x to get 20x.
20x-15+1-5x=x-12-5+15x
Subtract 10 from -5 to get -15.
20x-14-5x=x-12-5+15x
Add -15 and 1 to get -14.
15x-14=x-12-5+15x
Combine 20x and -5x to get 15x.
15x-14=x-17+15x
Subtract 5 from -12 to get -17.
15x-14=16x-17
Combine x and 15x to get 16x.
15x-14-16x=-17
Subtract 16x from both sides.
-x-14=-17
Combine 15x and -16x to get -x.
-x=-17+14
Add 14 to both sides.
-x=-3
Add -17 and 14 to get -3.
x=3
Multiply both sides by -1.
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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}