Solve for c
c=1
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9-9c=0
Swap sides so that all variable terms are on the left hand side.
-9c=-9
Subtract 9 from both sides. Anything subtracted from zero gives its negation.
c=\frac{-9}{-9}
Divide both sides by -9.
c=1
Divide -9 by -9 to get 1.
Examples
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Matrix
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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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