-1/5y=-21

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Solution for -1/5y=-21 equation: 



-1/5y=-21

We move all terms to the left:

-1/5y-(-21)=0



Domain of the equation: 5y!=0

y!=0/5

y!=0

y∈R



We add all the numbers together, and all the variables

-1/5y+21=0

We multiply all the terms by the denominator


21*5y-1=0

Wy multiply elements

105y-1=0

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

105y=1

y=1/105

y=1/105

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