Solve for x
x=5
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18-3x-5x=-22
Subtract 5x from both sides.
18-8x=-22
Combine -3x and -5x to get -8x.
-8x=-22-18
Subtract 18 from both sides.
-8x=-40
Subtract 18 from -22 to get -40.
x=\frac{-40}{-8}
Divide both sides by -8.
x=5
Divide -40 by -8 to get 5.
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
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Limits
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