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4(-1-3b)=-52
We move all terms to the left:
4(-1-3b)-(-52)=0
We add all the numbers together, and all the variables
4(-3b-1)-(-52)=0
We add all the numbers together, and all the variables
4(-3b-1)+52=0
We multiply parentheses
-12b-4+52=0
We add all the numbers together, and all the variables
-12b+48=0
We move all terms containing b to the left, all other terms to the right
-12b=-48
b=-48/-12
b=+4
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