Solve for n
n=\frac{4C}{5}-20600
Solve for C
C=\frac{5n}{4}+25750
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1.25n+25750=C
Swap sides so that all variable terms are on the left hand side.
1.25n=C-25750
Subtract 25750 from both sides.
\frac{1.25n}{1.25}=\frac{C-25750}{1.25}
Divide both sides of the equation by 1.25, which is the same as multiplying both sides by the reciprocal of the fraction.
n=\frac{C-25750}{1.25}
Dividing by 1.25 undoes the multiplication by 1.25.
n=\frac{4C}{5}-20600
Divide C-25750 by 1.25 by multiplying C-25750 by the reciprocal of 1.25.
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