50/(20-y)-1=4

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Solution for 50/(20-y)-1=4 equation:



50/(20-y)-1=4
We move all terms to the left:
50/(20-y)-1-(4)=0
Domain of the equation: (20-y)!=0
We move all terms containing y to the left, all other terms to the right
-y!=-20
y!=-20/-1
y!=+20
y∈R
We add all the numbers together, and all the variables
50/(-1y+20)-1-4=0
We add all the numbers together, and all the variables
50/(-1y+20)-5=0
We multiply all the terms by the denominator
-5*(-1y+20)+50=0
We multiply parentheses
5y-100+50=0
We add all the numbers together, and all the variables
5y-50=0
We move all terms containing y to the left, all other terms to the right
5y=50
y=50/5
y=10

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