-1/7y=9

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Solution for -1/7y=9 equation: 



-1/7y=9

We move all terms to the left:

-1/7y-(9)=0



Domain of the equation: 7y!=0

y!=0/7

y!=0

y∈R



We multiply all the terms by the denominator


-9*7y-1=0

Wy multiply elements

-63y-1=0

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

-63y=1

y=1/-63

y=-1/63

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