Solve for x
x=2
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9-12x=-x-13
Combine 4x and -5x to get -x.
9-12x+x=-13
Add x to both sides.
9-11x=-13
Combine -12x and x to get -11x.
-11x=-13-9
Subtract 9 from both sides.
-11x=-22
Subtract 9 from -13 to get -22.
x=\frac{-22}{-11}
Divide both sides by -11.
x=2
Divide -22 by -11 to get 2.
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