12r+12r+8=56

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Solution for 12r+12r+8=56 equation: 



12r+12r+8=56

We move all terms to the left:

12r+12r+8-(56)=0

We add all the numbers together, and all the variables

24r-48=0

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

24r=48

r=48/24

r=2

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