Solve for s
s=\frac{c-2700}{100}
Solve for c
c=100\left(s+27\right)
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2700+100s=c
Swap sides so that all variable terms are on the left hand side.
100s=c-2700
Subtract 2700 from both sides.
\frac{100s}{100}=\frac{c-2700}{100}
Divide both sides by 100.
s=\frac{c-2700}{100}
Dividing by 100 undoes the multiplication by 100.
s=\frac{c}{100}-27
Divide c-2700 by 100.
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