7y/9=21

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Solution for 7y/9=21 equation: 



7y/9=21

We move all terms to the left:

7y/9-(21)=0

We multiply all the terms by the denominator


7y-21*9=0

We add all the numbers together, and all the variables

7y-189=0

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

7y=189

y=189/7

y=27

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