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-8+7b=-2(6-4b)
We move all terms to the left:
-8+7b-(-2(6-4b))=0
We add all the numbers together, and all the variables
7b-(-2(-4b+6))-8=0
We calculate terms in parentheses: -(-2(-4b+6)), so:We get rid of parentheses
-2(-4b+6)
We multiply parentheses
8b-12
Back to the equation:
-(8b-12)
7b-8b+12-8=0
We add all the numbers together, and all the variables
-1b+4=0
We move all terms containing b to the left, all other terms to the right
-b=-4
b=-4/-1
b=+4
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