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4(w-2)+3w=13
We move all terms to the left:
4(w-2)+3w-(13)=0
We add all the numbers together, and all the variables
3w+4(w-2)-13=0
We multiply parentheses
3w+4w-8-13=0
We add all the numbers together, and all the variables
7w-21=0
We move all terms containing w to the left, all other terms to the right
7w=21
w=21/7
w=3
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