12-7+4/5y=9

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Solution for 12-7+4/5y=9 equation: 



12-7+4/5y=9

We move all terms to the left:

12-7+4/5y-(9)=0



Domain of the equation: 5y!=0

y!=0/5

y!=0

y∈R



We add all the numbers together, and all the variables

4/5y-4=0

We multiply all the terms by the denominator


-4*5y+4=0

Wy multiply elements

-20y+4=0

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

-20y=-4

y=-4/-20

y=1/5

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