Solve for x
x=-10
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-8\times 5=4x
Multiply both sides by 5.
-40=4x
Multiply -8 and 5 to get -40.
4x=-40
Swap sides so that all variable terms are on the left hand side.
x=\frac{-40}{4}
Divide both sides by 4.
x=-10
Divide -40 by 4 to get -10.
Examples
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Simultaneous equation
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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