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2x-45=x+30+8
We move all terms to the left:
2x-45-(x+30+8)=0
We add all the numbers together, and all the variables
2x-(x+38)-45=0
We get rid of parentheses
2x-x-38-45=0
We add all the numbers together, and all the variables
x-83=0
We move all terms containing x to the left, all other terms to the right
x=83
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