12b+9=-291

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Solution for 12b+9=-291 equation: 



12b+9=-291

We move all terms to the left:

12b+9-(-291)=0

We add all the numbers together, and all the variables

12b+300=0

We move all terms containing b to the left, all other terms to the right

12b=-300

b=-300/12

b=-25

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