Solve for F
F=2-\frac{9}{x}
x\neq 0
Solve for x
x=\frac{9}{2-F}
F\neq 2
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-2Fx=18-4x
Subtract 4x from both sides.
\left(-2x\right)F=18-4x
The equation is in standard form.
\frac{\left(-2x\right)F}{-2x}=\frac{18-4x}{-2x}
Divide both sides by -2x.
F=\frac{18-4x}{-2x}
Dividing by -2x undoes the multiplication by -2x.
F=2-\frac{9}{x}
Divide 18-4x by -2x.
\left(4-2F\right)x=18
Combine all terms containing x.
\frac{\left(4-2F\right)x}{4-2F}=\frac{18}{4-2F}
Divide both sides by 4-2F.
x=\frac{18}{4-2F}
Dividing by 4-2F undoes the multiplication by 4-2F.
x=\frac{9}{2-F}
Divide 18 by 4-2F.
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