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20+3.50x=20+3.50x
We move all terms to the left:
20+3.50x-(20+3.50x)=0
We add all the numbers together, and all the variables
3.50x-(3.50x+20)+20=0
We get rid of parentheses
3.50x-3.50x-20+20=0
We add all the numbers together, and all the variables
=0
x=0/1
x=0
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