21+3y-4=4+12y-24

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Solution for 21+3y-4=4+12y-24 equation: 



21+3y-4=4+12y-24

We move all terms to the left:

21+3y-4-(4+12y-24)=0

We add all the numbers together, and all the variables

3y-(12y-20)+21-4=0

We add all the numbers together, and all the variables

3y-(12y-20)+17=0

We get rid of parentheses

3y-12y+20+17=0

We add all the numbers together, and all the variables

-9y+37=0

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

-9y=-37

y=-37/-9

y=4+1/9

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