4r+12=56

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Solution for 4r+12=56 equation: 



4r+12=56

We move all terms to the left:

4r+12-(56)=0

We add all the numbers together, and all the variables

4r-44=0

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

4r=44

r=44/4

r=11

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