-2(1-5r)=13+7r

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Solution for -2(1-5r)=13+7r equation: 



-2(1-5r)=13+7r

We move all terms to the left:

-2(1-5r)-(13+7r)=0

We add all the numbers together, and all the variables

-2(-5r+1)-(7r+13)=0

We multiply parentheses

10r-(7r+13)-2=0

We get rid of parentheses

10r-7r-13-2=0

We add all the numbers together, and all the variables

3r-15=0

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

3r=15

r=15/3

r=5

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