3r+6(-7r-1)=72

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Solution for 3r+6(-7r-1)=72 equation: 



3r+6(-7r-1)=72

We move all terms to the left:

3r+6(-7r-1)-(72)=0

We multiply parentheses

3r-42r-6-72=0

We add all the numbers together, and all the variables

-39r-78=0

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

-39r=78

r=78/-39

r=-2

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