21-7y=-14

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Solution for 21-7y=-14 equation: 



21-7y=-14

We move all terms to the left:

21-7y-(-14)=0

We add all the numbers together, and all the variables

-7y+35=0

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

-7y=-35

y=-35/-7

y=+5

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