-5r-5(5r+5)=155

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Solution for -5r-5(5r+5)=155 equation: 



-5r-5(5r+5)=155

We move all terms to the left:

-5r-5(5r+5)-(155)=0

We multiply parentheses

-5r-25r-25-155=0

We add all the numbers together, and all the variables

-30r-180=0

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

-30r=180

r=180/-30

r=-6

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