20=(9+y)

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Solution for 20=(9+y) equation: 



20=(9+y)

We move all terms to the left:

20-((9+y))=0

We add all the numbers together, and all the variables

-((y+9))+20=0



We calculate terms in parentheses: -((y+9)), so:

(y+9)

We get rid of parentheses

y+9

Back to the equation:

-(y+9)



We get rid of parentheses

-y-9+20=0

We add all the numbers together, and all the variables

-1y+11=0

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

-y=-11

y=-11/-1

y=+11

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