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-45+2x+2x=x+23
We move all terms to the left:
-45+2x+2x-(x+23)=0
We add all the numbers together, and all the variables
4x-(x+23)-45=0
We get rid of parentheses
4x-x-23-45=0
We add all the numbers together, and all the variables
3x-68=0
We move all terms containing x to the left, all other terms to the right
3x=68
x=68/3
x=22+2/3
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