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120=28+2w
We move all terms to the left:
120-(28+2w)=0
We add all the numbers together, and all the variables
-(2w+28)+120=0
We get rid of parentheses
-2w-28+120=0
We add all the numbers together, and all the variables
-2w+92=0
We move all terms containing w to the left, all other terms to the right
-2w=-92
w=-92/-2
w=+46
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