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2(3b+4)-3(4-b)=6b+8-12+3b
We move all terms to the left:
2(3b+4)-3(4-b)-(6b+8-12+3b)=0
We add all the numbers together, and all the variables
2(3b+4)-3(-1b+4)-(9b-4)=0
We multiply parentheses
6b+3b-(9b-4)+8-12=0
We get rid of parentheses
6b+3b-9b+4+8-12=0
We add all the numbers together, and all the variables
=0
b=0/1
b=0
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