Solve for x
x=-8
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2x+4=-12
Divide 16 by 8 to get 2.
2x=-12-4
Subtract 4 from both sides.
2x=-16
Subtract 4 from -12 to get -16.
x=\frac{-16}{2}
Divide both sides by 2.
x=-8
Divide -16 by 2 to get -8.
Examples
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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
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Limits
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