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-7(w+5)=-91
We move all terms to the left:
-7(w+5)-(-91)=0
We add all the numbers together, and all the variables
-7(w+5)+91=0
We multiply parentheses
-7w-35+91=0
We add all the numbers together, and all the variables
-7w+56=0
We move all terms containing w to the left, all other terms to the right
-7w=-56
w=-56/-7
w=+8
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