Solve for f
f=\frac{d+32}{45}
Solve for d
d=45f-32
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45f=32+d
Swap sides so that all variable terms are on the left hand side.
45f=d+32
The equation is in standard form.
\frac{45f}{45}=\frac{d+32}{45}
Divide both sides by 45.
f=\frac{d+32}{45}
Dividing by 45 undoes the multiplication by 45.
d=45f-32
Subtract 32 from both sides.
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