-2y-5=-21

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Solution for -2y-5=-21 equation: 



-2y-5=-21

We move all terms to the left:

-2y-5-(-21)=0

We add all the numbers together, and all the variables

-2y+16=0

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

-2y=-16

y=-16/-2

y=+8

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