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4x-(2-x)=23
We move all terms to the left:
4x-(2-x)-(23)=0
We add all the numbers together, and all the variables
4x-(-1x+2)-23=0
We get rid of parentheses
4x+1x-2-23=0
We add all the numbers together, and all the variables
5x-25=0
We move all terms containing x to the left, all other terms to the right
5x=25
x=25/5
x=5
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