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2x+30=30+2x
We move all terms to the left:
2x+30-(30+2x)=0
We add all the numbers together, and all the variables
2x-(2x+30)+30=0
We get rid of parentheses
2x-2x-30+30=0
We add all the numbers together, and all the variables
=0
x=0/1
x=0
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