Solve for x
x=-1
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-3x+5-5x=13
Subtract 5x from both sides.
-8x+5=13
Combine -3x and -5x to get -8x.
-8x=13-5
Subtract 5 from both sides.
-8x=8
Subtract 5 from 13 to get 8.
x=\frac{8}{-8}
Divide both sides by -8.
x=-1
Divide 8 by -8 to get -1.
Examples
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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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