-3(1+6r)=129

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Solution for -3(1+6r)=129 equation: 



-3(1+6r)=129

We move all terms to the left:

-3(1+6r)-(129)=0

We add all the numbers together, and all the variables

-3(6r+1)-129=0

We multiply parentheses

-18r-3-129=0

We add all the numbers together, and all the variables

-18r-132=0

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

-18r=132

r=132/-18

r=-7+1/3

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