21/8y=20/2

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Solution for 21/8y=20/2 equation: 



21/8y=20/2

We move all terms to the left:

21/8y-(20/2)=0



Domain of the equation: 8y!=0

y!=0/8

y!=0

y∈R



We add all the numbers together, and all the variables

21/8y-10=0

We multiply all the terms by the denominator


-10*8y+21=0

Wy multiply elements

-80y+21=0

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

-80y=-21

y=-21/-80

y=21/80

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