Solve for x
x=-2
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-3x-15=3\left(x-1\right)
Use the distributive property to multiply -3 by x+5.
-3x-15=3x-3
Use the distributive property to multiply 3 by x-1.
-3x-15-3x=-3
Subtract 3x from both sides.
-6x-15=-3
Combine -3x and -3x to get -6x.
-6x=-3+15
Add 15 to both sides.
-6x=12
Add -3 and 15 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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y = 3x + 4
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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
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