Solve for c
c=-7
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8-9c=71
Swap sides so that all variable terms are on the left hand side.
-9c=71-8
Subtract 8 from both sides.
-9c=63
Subtract 8 from 71 to get 63.
c=\frac{63}{-9}
Divide both sides by -9.
c=-7
Divide 63 by -9 to get -7.
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