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600/300=900/y
We move all terms to the left:
600/300-(900/y)=0
Domain of the equation: y)!=0We add all the numbers together, and all the variables
y!=0/1
y!=0
y∈R
-(+900/y)+600/300=0
We add all the numbers together, and all the variables
-(+900/y)+2=0
We get rid of parentheses
-900/y+2=0
We multiply all the terms by the denominator
2*y-900=0
We add all the numbers together, and all the variables
2y-900=0
We move all terms containing y to the left, all other terms to the right
2y=900
y=900/2
y=450
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