7(r+4)=14r-28

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Solution for 7(r+4)=14r-28 equation: 



7(r+4)=14r-28

We move all terms to the left:

7(r+4)-(14r-28)=0

We multiply parentheses

7r-(14r-28)+28=0

We get rid of parentheses

7r-14r+28+28=0

We add all the numbers together, and all the variables

-7r+56=0

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

-7r=-56

r=-56/-7

r=+8

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