21+4y-2=13y-9-2y

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Solution for 21+4y-2=13y-9-2y equation: 



21+4y-2=13y-9-2y

We move all terms to the left:

21+4y-2-(13y-9-2y)=0

We add all the numbers together, and all the variables

4y-(11y-9)+21-2=0

We add all the numbers together, and all the variables

4y-(11y-9)+19=0

We get rid of parentheses

4y-11y+9+19=0

We add all the numbers together, and all the variables

-7y+28=0

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

-7y=-28

y=-28/-7

y=+4

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