Solve for b
b=\frac{a-c}{32}
Solve for a
a=32b+c
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32b+c=a
Swap sides so that all variable terms are on the left hand side.
32b=a-c
Subtract c from both sides.
\frac{32b}{32}=\frac{a-c}{32}
Divide both sides by 32.
b=\frac{a-c}{32}
Dividing by 32 undoes the multiplication by 32.
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