Solve for x
x=-4
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8-x=6\times 2
Multiply both sides by 2.
8-x=12
Multiply 6 and 2 to get 12.
-x=12-8
Subtract 8 from both sides.
-x=4
Subtract 8 from 12 to get 4.
x=-4
Multiply both sides by -1.
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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