7/2y+7=21

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Solution for 7/2y+7=21 equation: 



7/2y+7=21

We move all terms to the left:

7/2y+7-(21)=0



Domain of the equation: 2y!=0

y!=0/2

y!=0

y∈R



We add all the numbers together, and all the variables

7/2y-14=0

We multiply all the terms by the denominator


-14*2y+7=0

Wy multiply elements

-28y+7=0

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

-28y=-7

y=-7/-28

y=1/4

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