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5w+15=2(w+3)
We move all terms to the left:
5w+15-(2(w+3))=0
We calculate terms in parentheses: -(2(w+3)), so:We get rid of parentheses
2(w+3)
We multiply parentheses
2w+6
Back to the equation:
-(2w+6)
5w-2w-6+15=0
We add all the numbers together, and all the variables
3w+9=0
We move all terms containing w to the left, all other terms to the right
3w=-9
w=-9/3
w=-3
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