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9/y+4=8/y-9
We move all terms to the left:
9/y+4-(8/y-9)=0
Domain of the equation: y!=0
y∈R
Domain of the equation: y-9)!=0We get rid of parentheses
y∈R
9/y-8/y+9+4=0
We multiply all the terms by the denominator
9*y+4*y+9-8=0
We add all the numbers together, and all the variables
13y+1=0
We move all terms containing y to the left, all other terms to the right
13y=-1
y=-1/13
y=-1/13
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