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87=4w+11
We move all terms to the left:
87-(4w+11)=0
We get rid of parentheses
-4w-11+87=0
We add all the numbers together, and all the variables
-4w+76=0
We move all terms containing w to the left, all other terms to the right
-4w=-76
w=-76/-4
w=+19
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