8y+3y-21=4y+8-2

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Solution for 8y+3y-21=4y+8-2 equation: 



8y+3y-21=4y+8-2

We move all terms to the left:

8y+3y-21-(4y+8-2)=0

We add all the numbers together, and all the variables

8y+3y-(4y+6)-21=0

We add all the numbers together, and all the variables

11y-(4y+6)-21=0

We get rid of parentheses

11y-4y-6-21=0

We add all the numbers together, and all the variables

7y-27=0

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

7y=27

y=27/7

y=3+6/7

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