21-1/2y=15

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Solution for 21-1/2y=15 equation: 



21-1/2y=15

We move all terms to the left:

21-1/2y-(15)=0



Domain of the equation: 2y!=0

y!=0/2

y!=0

y∈R



We add all the numbers together, and all the variables

-1/2y+6=0

We multiply all the terms by the denominator


6*2y-1=0

Wy multiply elements

12y-1=0

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

12y=1

y=1/12

y=1/12

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