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266=2w+2(2w-2)
We move all terms to the left:
266-(2w+2(2w-2))=0
We calculate terms in parentheses: -(2w+2(2w-2)), so:We get rid of parentheses
2w+2(2w-2)
We multiply parentheses
2w+4w-4
We add all the numbers together, and all the variables
6w-4
Back to the equation:
-(6w-4)
-6w+4+266=0
We add all the numbers together, and all the variables
-6w+270=0
We move all terms containing w to the left, all other terms to the right
-6w=-270
w=-270/-6
w=+45
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