-3r+28=-5(r-4)

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Solution for -3r+28=-5(r-4) equation: 



-3r+28=-5(r-4)

We move all terms to the left:

-3r+28-(-5(r-4))=0



We calculate terms in parentheses: -(-5(r-4)), so:

-5(r-4)

We multiply parentheses

-5r+20

Back to the equation:

-(-5r+20)



We get rid of parentheses

-3r+5r-20+28=0

We add all the numbers together, and all the variables

2r+8=0

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

2r=-8

r=-8/2

r=-4

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