-3(r-13)=-12

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Solution for -3(r-13)=-12 equation: 



-3(r-13)=-12

We move all terms to the left:

-3(r-13)-(-12)=0

We add all the numbers together, and all the variables

-3(r-13)+12=0

We multiply parentheses

-3r+39+12=0

We add all the numbers together, and all the variables

-3r+51=0

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

-3r=-51

r=-51/-3

r=+17

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