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39.21x+2.65=31.68+42.03x
We move all terms to the left:
39.21x+2.65-(31.68+42.03x)=0
We add all the numbers together, and all the variables
39.21x-(42.03x+31.68)+2.65=0
We get rid of parentheses
39.21x-42.03x-31.68+2.65=0
We add all the numbers together, and all the variables
-2.82x-29.03=0
We move all terms containing x to the left, all other terms to the right
-2.82x=29.03
x=29.03/-2.82
x=-10+0.83/2.82
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