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2x+3x=12-2x-3x=-12
We move all terms to the left:
2x+3x-(12-2x-3x)=0
We add all the numbers together, and all the variables
2x+3x-(-5x+12)=0
We add all the numbers together, and all the variables
5x-(-5x+12)=0
We get rid of parentheses
5x+5x-12=0
We add all the numbers together, and all the variables
10x-12=0
We move all terms containing x to the left, all other terms to the right
10x=12
x=12/10
x=1+1/5
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