-7(-2r-4)=-3r-40

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Solution for -7(-2r-4)=-3r-40 equation: 



-7(-2r-4)=-3r-40

We move all terms to the left:

-7(-2r-4)-(-3r-40)=0

We multiply parentheses

14r-(-3r-40)+28=0

We get rid of parentheses

14r+3r+40+28=0

We add all the numbers together, and all the variables

17r+68=0

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

17r=-68

r=-68/17

r=-4

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