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2.w+2.3w=90
We move all terms to the left:
2.w+2.3w-(90)=0
We add all the numbers together, and all the variables
4.3w-90=0
We move all terms containing w to the left, all other terms to the right
4.3w=90
w=90/4.3
w=20+1/1.075
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