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X+7=2(4X-13)
We move all terms to the left:
X+7-(2(4X-13))=0
We calculate terms in parentheses: -(2(4X-13)), so:We get rid of parentheses
2(4X-13)
We multiply parentheses
8X-26
Back to the equation:
-(8X-26)
X-8X+26+7=0
We add all the numbers together, and all the variables
-7X+33=0
We move all terms containing X to the left, all other terms to the right
-7X=-33
X=-33/-7
X=4+5/7
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