(7y-1)=(5y+21)

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Solution for (7y-1)=(5y+21) equation: 



(7y-1)=(5y+21)

We move all terms to the left:

(7y-1)-((5y+21))=0

We get rid of parentheses

7y-((5y+21))-1=0



We calculate terms in parentheses: -((5y+21)), so:

(5y+21)

We get rid of parentheses

5y+21

Back to the equation:

-(5y+21)



We get rid of parentheses

7y-5y-21-1=0

We add all the numbers together, and all the variables

2y-22=0

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

2y=22

y=22/2

y=11

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