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x^2+3x-3-1=x^2-4
We move all terms to the left:
x^2+3x-3-1-(x^2-4)=0
We add all the numbers together, and all the variables
x^2+3x-(x^2-4)-4=0
We get rid of parentheses
x^2-x^2+3x+4-4=0
We add all the numbers together, and all the variables
3x=0
x=0/3
x=0
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