Solve for h
h=\frac{2C}{15}-0.4
Solve for C
C=\frac{15h}{2}+3
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7.5h+3=C
Swap sides so that all variable terms are on the left hand side.
7.5h=C-3
Subtract 3 from both sides.
\frac{7.5h}{7.5}=\frac{C-3}{7.5}
Divide both sides of the equation by 7.5, which is the same as multiplying both sides by the reciprocal of the fraction.
h=\frac{C-3}{7.5}
Dividing by 7.5 undoes the multiplication by 7.5.
h=\frac{2C}{15}-\frac{2}{5}
Divide C-3 by 7.5 by multiplying C-3 by the reciprocal of 7.5.
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