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20=2w+1+w
We move all terms to the left:
20-(2w+1+w)=0
We add all the numbers together, and all the variables
-(3w+1)+20=0
We get rid of parentheses
-3w-1+20=0
We add all the numbers together, and all the variables
-3w+19=0
We move all terms containing w to the left, all other terms to the right
-3w=-19
w=-19/-3
w=6+1/3
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