7+5(y-7)=21

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Solution for 7+5(y-7)=21 equation: 



7+5(y-7)=21

We move all terms to the left:

7+5(y-7)-(21)=0

We add all the numbers together, and all the variables

5(y-7)-14=0

We multiply parentheses

5y-35-14=0

We add all the numbers together, and all the variables

5y-49=0

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

5y=49

y=49/5

y=9+4/5

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