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0.20x+0.35(30)=35.5
We move all terms to the left:
0.20x+0.35(30)-(35.5)=0
We add all the numbers together, and all the variables
0.20x-35.147=0
We move all terms containing x to the left, all other terms to the right
0.20x=35.147
x=35.147/0.20
x=175+0.147/0.20
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