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y/2-4=-12
We move all terms to the left:
y/2-4-(-12)=0
We add all the numbers together, and all the variables
y/2+8=0
We multiply all the terms by the denominator
y+8*2=0
We add all the numbers together, and all the variables
y+16=0
We move all terms containing y to the left, all other terms to the right
y=-16
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