21=-7/6y

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Solution for 21=-7/6y equation: 



21=-7/6y

We move all terms to the left:

21-(-7/6y)=0



Domain of the equation: 6y)!=0

y!=0/1

y!=0

y∈R



We get rid of parentheses

7/6y+21=0

We multiply all the terms by the denominator


21*6y+7=0

Wy multiply elements

126y+7=0

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

126y=-7

y=-7/126

y=-1/18

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