7(3)-3y=21

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Solution for 7(3)-3y=21 equation: 



7(3)-3y=21

We move all terms to the left:

7(3)-3y-(21)=0

We add all the numbers together, and all the variables

-3y+52=0

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

-3y=-52

y=-52/-3

y=17+1/3

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