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2w+2(2w+7)=28
We move all terms to the left:
2w+2(2w+7)-(28)=0
We multiply parentheses
2w+4w+14-28=0
We add all the numbers together, and all the variables
6w-14=0
We move all terms containing w to the left, all other terms to the right
6w=14
w=14/6
w=2+1/3
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