81=(4y-1)

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Solution for 81=(4y-1) equation: 



81=(4y-1)

We move all terms to the left:

81-((4y-1))=0



We calculate terms in parentheses: -((4y-1)), so:

(4y-1)

We get rid of parentheses

4y-1

Back to the equation:

-(4y-1)



We get rid of parentheses

-4y+1+81=0

We add all the numbers together, and all the variables

-4y+82=0

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

-4y=-82

y=-82/-4

y=20+1/2

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