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31x-2=50x+20
We move all terms to the left:
31x-2-(50x+20)=0
We get rid of parentheses
31x-50x-20-2=0
We add all the numbers together, and all the variables
-19x-22=0
We move all terms containing x to the left, all other terms to the right
-19x=22
x=22/-19
x=-1+3/19
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