Solve for b
b=2
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15-9b=2b-7
Multiply both sides of the equation by 3.
15-9b-2b=-7
Subtract 2b from both sides.
15-11b=-7
Combine -9b and -2b to get -11b.
-11b=-7-15
Subtract 15 from both sides.
-11b=-22
Subtract 15 from -7 to get -22.
b=\frac{-22}{-11}
Divide both sides by -11.
b=2
Divide -22 by -11 to get 2.
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