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2.20w+3w-12=11
We move all terms to the left:
2.20w+3w-12-(11)=0
We add all the numbers together, and all the variables
5.2w-23=0
We move all terms containing w to the left, all other terms to the right
5.2w=23
w=23/5.2
w=4+2.2/5.2
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