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-7=5(2x-1)-2(4x+1)
We move all terms to the left:
-7-(5(2x-1)-2(4x+1))=0
We calculate terms in parentheses: -(5(2x-1)-2(4x+1)), so:We get rid of parentheses
5(2x-1)-2(4x+1)
We multiply parentheses
10x-8x-5-2
We add all the numbers together, and all the variables
2x-7
Back to the equation:
-(2x-7)
-2x+7-7=0
We add all the numbers together, and all the variables
-2x=0
x=0/-2
x=0
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