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