-5(1-3r)=85

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Solution for -5(1-3r)=85 equation: 



-5(1-3r)=85

We move all terms to the left:

-5(1-3r)-(85)=0

We add all the numbers together, and all the variables

-5(-3r+1)-85=0

We multiply parentheses

15r-5-85=0

We add all the numbers together, and all the variables

15r-90=0

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

15r=90

r=90/15

r=6

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