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-72=7w-15w-6
We move all terms to the left:
-72-(7w-15w-6)=0
We add all the numbers together, and all the variables
-(-8w-6)-72=0
We get rid of parentheses
8w+6-72=0
We add all the numbers together, and all the variables
8w-66=0
We move all terms containing w to the left, all other terms to the right
8w=66
w=66/8
w=8+1/4
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