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(3+2w)=105
We move all terms to the left:
(3+2w)-(105)=0
We add all the numbers together, and all the variables
(2w+3)-105=0
We get rid of parentheses
2w+3-105=0
We add all the numbers together, and all the variables
2w-102=0
We move all terms containing w to the left, all other terms to the right
2w=102
w=102/2
w=51
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