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-x+23=3x+3
We move all terms to the left:
-x+23-(3x+3)=0
We add all the numbers together, and all the variables
-1x-(3x+3)+23=0
We get rid of parentheses
-1x-3x-3+23=0
We add all the numbers together, and all the variables
-4x+20=0
We move all terms containing x to the left, all other terms to the right
-4x=-20
x=-20/-4
x=+5
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