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7y-2=y+4
We move all terms to the left:
7y-2-(y+4)=0
We get rid of parentheses
7y-y-4-2=0
We add all the numbers together, and all the variables
6y-6=0
We move all terms containing y to the left, all other terms to the right
6y=6
y=6/6
y=1
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