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3(4b+1)=-51
We move all terms to the left:
3(4b+1)-(-51)=0
We add all the numbers together, and all the variables
3(4b+1)+51=0
We multiply parentheses
12b+3+51=0
We add all the numbers together, and all the variables
12b+54=0
We move all terms containing b to the left, all other terms to the right
12b=-54
b=-54/12
b=-4+1/2
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