r+7+8r+4=29

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Solution for r+7+8r+4=29 equation: 



r+7+8r+4=29

We move all terms to the left:

r+7+8r+4-(29)=0

We add all the numbers together, and all the variables

9r-18=0

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

9r=18

r=18/9

r=2

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