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-10=2(-7+w)
We move all terms to the left:
-10-(2(-7+w))=0
We add all the numbers together, and all the variables
-(2(w-7))-10=0
We calculate terms in parentheses: -(2(w-7)), so:We get rid of parentheses
2(w-7)
We multiply parentheses
2w-14
Back to the equation:
-(2w-14)
-2w+14-10=0
We add all the numbers together, and all the variables
-2w+4=0
We move all terms containing w to the left, all other terms to the right
-2w=-4
w=-4/-2
w=+2
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