y-4=21(y-8)

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Solution for y-4=21(y-8) equation: 



y-4=21(y-8)

We move all terms to the left:

y-4-(21(y-8))=0



We calculate terms in parentheses: -(21(y-8)), so:

21(y-8)

We multiply parentheses

21y-168

Back to the equation:

-(21y-168)



We get rid of parentheses

y-21y+168-4=0

We add all the numbers together, and all the variables

-20y+164=0

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

-20y=-164

y=-164/-20

y=8+1/5

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