Solve for b
b=-9
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91+3b+3b=37
Add 3b to both sides.
91+6b=37
Combine 3b and 3b to get 6b.
6b=37-91
Subtract 91 from both sides.
6b=-54
Subtract 91 from 37 to get -54.
b=\frac{-54}{6}
Divide both sides by 6.
b=-9
Divide -54 by 6 to get -9.
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