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4b-8=-(4b+8)
We move all terms to the left:
4b-8-(-(4b+8))=0
We calculate terms in parentheses: -(-(4b+8)), so:We get rid of parentheses
-(4b+8)
We get rid of parentheses
-4b-8
Back to the equation:
-(-4b-8)
4b+4b+8-8=0
We add all the numbers together, and all the variables
8b=0
b=0/8
b=0
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