5y+9=21

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Solution for 5y+9=21 equation: 



5y+9=21

We move all terms to the left:

5y+9-(21)=0

We add all the numbers together, and all the variables

5y-12=0

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

5y=12

y=12/5

y=2+2/5

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