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2y-4=7-8y
We move all terms to the left:
2y-4-(7-8y)=0
We add all the numbers together, and all the variables
2y-(-8y+7)-4=0
We get rid of parentheses
2y+8y-7-4=0
We add all the numbers together, and all the variables
10y-11=0
We move all terms containing y to the left, all other terms to the right
10y=11
y=11/10
y=1+1/10
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