Solve for w
w=\frac{C-6}{4}
Solve for C
C=4w+6
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4w+6=C
Swap sides so that all variable terms are on the left hand side.
4w=C-6
Subtract 6 from both sides.
\frac{4w}{4}=\frac{C-6}{4}
Divide both sides by 4.
w=\frac{C-6}{4}
Dividing by 4 undoes the multiplication by 4.
w=\frac{C}{4}-\frac{3}{2}
Divide C-6 by 4.
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