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12/2+x/2=8/2
We move all terms to the left:
12/2+x/2-(8/2)=0
We add all the numbers together, and all the variables
x/2+12/2-4=0
We add all the numbers together, and all the variables
x/2+2=0
We multiply all the terms by the denominator
x+2*2=0
We add all the numbers together, and all the variables
x+4=0
We move all terms containing x to the left, all other terms to the right
x=-4
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