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-4(w+1)=-21
We move all terms to the left:
-4(w+1)-(-21)=0
We add all the numbers together, and all the variables
-4(w+1)+21=0
We multiply parentheses
-4w-4+21=0
We add all the numbers together, and all the variables
-4w+17=0
We move all terms containing w to the left, all other terms to the right
-4w=-17
w=-17/-4
w=4+1/4
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