Solve for b
b=17
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9b-12+2b+5=180
Combine 8b and b to get 9b.
11b-12+5=180
Combine 9b and 2b to get 11b.
11b-7=180
Add -12 and 5 to get -7.
11b=180+7
Add 7 to both sides.
11b=187
Add 180 and 7 to get 187.
b=\frac{187}{11}
Divide both sides by 11.
b=17
Divide 187 by 11 to get 17.
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