7+y+2y=20

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



7+y+2y=20

We move all terms to the left:

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

We add all the numbers together, and all the variables

3y-13=0

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

3y=13

y=13/3

y=4+1/3

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