12r+16=-64r-40

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Solution for 12r+16=-64r-40 equation: 



12r+16=-64r-40

We move all terms to the left:

12r+16-(-64r-40)=0

We get rid of parentheses

12r+64r+40+16=0

We add all the numbers together, and all the variables

76r+56=0

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

76r=-56

r=-56/76

r=-14/19

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