Solve for x
x=-2
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x-8-5x=0
Subtract 5x from both sides.
-4x-8=0
Combine x and -5x to get -4x.
-4x=8
Add 8 to both sides. Anything plus zero gives itself.
x=\frac{8}{-4}
Divide both sides by -4.
x=-2
Divide 8 by -4 to get -2.
Examples
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y = 3x + 4
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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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