129=-3(1+6r)

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



129=-3(1+6r)

We move all terms to the left:

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

We add all the numbers together, and all the variables

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



We calculate terms in parentheses: -(-3(6r+1)), so:

-3(6r+1)

We multiply parentheses

-18r-3

Back to the equation:

-(-18r-3)



We get rid of 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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