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20+1.2x=40+0.85x
We move all terms to the left:
20+1.2x-(40+0.85x)=0
We add all the numbers together, and all the variables
1.2x-(0.85x+40)+20=0
We get rid of parentheses
1.2x-0.85x-40+20=0
We add all the numbers together, and all the variables
0.35x-20=0
We move all terms containing x to the left, all other terms to the right
0.35x=20
x=20/0.35
x=57+0.050000000000001/0.35
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