7.99+2y=21

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Solution for 7.99+2y=21 equation: 



7.99+2y=21

We move all terms to the left:

7.99+2y-(21)=0

We add all the numbers together, and all the variables

2y-13.01=0

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

2y=13.01

y=13.01/2

y=6+1/1.980198019802

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