Solve for x
x=-2
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2x-3+4x=-15
Add 4x to both sides.
6x-3=-15
Combine 2x and 4x to get 6x.
6x=-15+3
Add 3 to both sides.
6x=-12
Add -15 and 3 to get -12.
x=\frac{-12}{6}
Divide both sides by 6.
x=-2
Divide -12 by 6 to get -2.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Linear equation
y = 3x + 4
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Matrix
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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
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