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-10=-(x-7)
We move all terms to the left:
-10-(-(x-7))=0
We calculate terms in parentheses: -(-(x-7)), so:We get rid of parentheses
-(x-7)
We get rid of parentheses
-x+7
We add all the numbers together, and all the variables
-1x+7
Back to the equation:
-(-1x+7)
1x-7-10=0
We add all the numbers together, and all the variables
x-17=0
We move all terms containing x to the left, all other terms to the right
x=17
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