7/9y-8=-1

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Solution for 7/9y-8=-1 equation: 



7/9y-8=-1

We move all terms to the left:

7/9y-8-(-1)=0



Domain of the equation: 9y!=0

y!=0/9

y!=0

y∈R



We add all the numbers together, and all the variables

7/9y-7=0

We multiply all the terms by the denominator


-7*9y+7=0

Wy multiply elements

-63y+7=0

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

-63y=-7

y=-7/-63

y=1/9

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