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w+12+3w=20+4w-8
We move all terms to the left:
w+12+3w-(20+4w-8)=0
We add all the numbers together, and all the variables
w+3w-(4w+12)+12=0
We add all the numbers together, and all the variables
4w-(4w+12)+12=0
We get rid of parentheses
4w-4w-12+12=0
We add all the numbers together, and all the variables
=0
w=0/1
w=0
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