Solve for x
x=-2
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8x-5=-21
Swap sides so that all variable terms are on the left hand side.
8x=-21+5
Add 5 to both sides.
8x=-16
Add -21 and 5 to get -16.
x=\frac{-16}{8}
Divide both sides by 8.
x=-2
Divide -16 by 8 to get -2.
Examples
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y = 3x + 4
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Matrix
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Simultaneous equation
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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