Solve for x
x=\frac{1}{f-3}
f\neq 3
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fx-3x=1
Subtract 3x from both sides.
\left(f-3\right)x=1
Combine all terms containing x.
\frac{\left(f-3\right)x}{f-3}=\frac{1}{f-3}
Divide both sides by f-3.
x=\frac{1}{f-3}
Dividing by f-3 undoes the multiplication by f-3.
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