3/7y-4=-1

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Solution for 3/7y-4=-1 equation: 



3/7y-4=-1

We move all terms to the left:

3/7y-4-(-1)=0



Domain of the equation: 7y!=0

y!=0/7

y!=0

y∈R



We add all the numbers together, and all the variables

3/7y-3=0

We multiply all the terms by the denominator


-3*7y+3=0

Wy multiply elements

-21y+3=0

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

-21y=-3

y=-3/-21

y=1/7

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