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