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-15-3w=4w+2w
We move all terms to the left:
-15-3w-(4w+2w)=0
We add all the numbers together, and all the variables
-3w-(+6w)-15=0
We get rid of parentheses
-3w-6w-15=0
We add all the numbers together, and all the variables
-9w-15=0
We move all terms containing w to the left, all other terms to the right
-9w=15
w=15/-9
w=-1+2/3
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