Y-2/3x-1/3x=21

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Solution for Y-2/3x-1/3x=21 equation: 



-2/3Y-1/3Y=21

We move all terms to the left:

-2/3Y-1/3Y-(21)=0



Domain of the equation: 3Y!=0

Y!=0/3

Y!=0

Y∈R



We multiply all the terms by the denominator


-21*3Y-2-1=0

We add all the numbers together, and all the variables

-21*3Y-3=0

Wy multiply elements

-63Y-3=0

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

-63Y=3

Y=3/-63

Y=-1/21

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