20=30/(y-10)

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Solution for 20=30/(y-10) equation: 



20=30/(y-10)

We move all terms to the left:

20-(30/(y-10))=0



Domain of the equation: (y-10))!=0

y∈R



We multiply all the terms by the denominator


-(30+20*(y-10))=0



We calculate terms in parentheses: -(30+20*(y-10)), so:

30+20*(y-10)

determiningTheFunctionDomain
20*(y-10)+30

We multiply parentheses

20y-200+30

We add all the numbers together, and all the variables

20y-170

Back to the equation:

-(20y-170)



We get rid of parentheses

-20y+170=0

We move all terms containing y to the left, all other terms to the right

-20y=-170

y=-170/-20

y=8+1/2

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