Solve for x
x=-2
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4-3x+x=8
Add x to both sides.
4-2x=8
Combine -3x and x to get -2x.
-2x=8-4
Subtract 4 from both sides.
-2x=4
Subtract 4 from 8 to get 4.
x=\frac{4}{-2}
Divide both sides by -2.
x=-2
Divide 4 by -2 to get -2.
Examples
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Matrix
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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