4(7-4r)=-8r-28

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Solution for 4(7-4r)=-8r-28 equation: 



4(7-4r)=-8r-28

We move all terms to the left:

4(7-4r)-(-8r-28)=0

We add all the numbers together, and all the variables

4(-4r+7)-(-8r-28)=0

We multiply parentheses

-16r-(-8r-28)+28=0

We get rid of parentheses

-16r+8r+28+28=0

We add all the numbers together, and all the variables

-8r+56=0

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

-8r=-56

r=-56/-8

r=+7

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