3r+r+3r=14

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Solution for 3r+r+3r=14 equation: 



3r+r+3r=14

We move all terms to the left:

3r+r+3r-(14)=0

We add all the numbers together, and all the variables

7r-14=0

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

7r=14

r=14/7

r=2

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