Solve for F
F=\frac{x+9}{x+1}
x\neq -1
Solve for x
x=-\frac{F-9}{F-1}
F\neq 1
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Fx+F-2=x+7
Use the distributive property to multiply F by x+1.
Fx+F=x+7+2
Add 2 to both sides.
Fx+F=x+9
Add 7 and 2 to get 9.
\left(x+1\right)F=x+9
Combine all terms containing F.
\frac{\left(x+1\right)F}{x+1}=\frac{x+9}{x+1}
Divide both sides by x+1.
F=\frac{x+9}{x+1}
Dividing by x+1 undoes the multiplication by x+1.
Fx+F-2=x+7
Use the distributive property to multiply F by x+1.
Fx+F-2-x=7
Subtract x from both sides.
Fx-2-x=7-F
Subtract F from both sides.
Fx-x=7-F+2
Add 2 to both sides.
Fx-x=9-F
Add 7 and 2 to get 9.
\left(F-1\right)x=9-F
Combine all terms containing x.
\frac{\left(F-1\right)x}{F-1}=\frac{9-F}{F-1}
Divide both sides by F-1.
x=\frac{9-F}{F-1}
Dividing by F-1 undoes the multiplication by F-1.
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