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9y=7-3y/7
We move all terms to the left:
9y-(7-3y/7)=0
We add all the numbers together, and all the variables
9y-(-3y/7+7)=0
We get rid of parentheses
9y+3y/7-7=0
We multiply all the terms by the denominator
9y*7+3y-7*7=0
We add all the numbers together, and all the variables
3y+9y*7-49=0
Wy multiply elements
3y+63y-49=0
We add all the numbers together, and all the variables
66y-49=0
We move all terms containing y to the left, all other terms to the right
66y=49
y=49/66
y=49/66
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