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54=3+w
We move all terms to the left:
54-(3+w)=0
We add all the numbers together, and all the variables
-(w+3)+54=0
We get rid of parentheses
-w-3+54=0
We add all the numbers together, and all the variables
-1w+51=0
We move all terms containing w to the left, all other terms to the right
-w=-51
w=-51/-1
w=+51
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