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2.8(w-5.4)=7
We move all terms to the left:
2.8(w-5.4)-(7)=0
We multiply parentheses
2.8w-15.12-7=0
We add all the numbers together, and all the variables
2.8w-22.12=0
We move all terms containing w to the left, all other terms to the right
2.8w=22.12
w=22.12/2.8
w=7+1/1.1111111111111
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