Solve for n
n=\frac{s-16w}{16}
Solve for s
s=16\left(n+w\right)
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16n+16w=s
Swap sides so that all variable terms are on the left hand side.
16n=s-16w
Subtract 16w from both sides.
\frac{16n}{16}=\frac{s-16w}{16}
Divide both sides by 16.
n=\frac{s-16w}{16}
Dividing by 16 undoes the multiplication by 16.
n=\frac{s}{16}-w
Divide s-16w by 16.
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