7y+21/21+2y=20

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Solution for 7y+21/21+2y=20 equation: 



7y+21/21+2y=20

We move all terms to the left:

7y+21/21+2y-(20)=0

determiningTheFunctionDomain
7y+2y-20+21/21=0

We add all the numbers together, and all the variables

9y-19=0

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

9y=19

y=19/9

y=2+1/9

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