49-7(y-7)=21

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Solution for 49-7(y-7)=21 equation: 



49-7(y-7)=21

We move all terms to the left:

49-7(y-7)-(21)=0

We add all the numbers together, and all the variables

-7(y-7)+28=0

We multiply parentheses

-7y+49+28=0

We add all the numbers together, and all the variables

-7y+77=0

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

-7y=-77

y=-77/-7

y=+11

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