29=7r+8

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Solution for 29=7r+8 equation: 



29=7r+8

We move all terms to the left:

29-(7r+8)=0

We get rid of parentheses

-7r-8+29=0

We add all the numbers together, and all the variables

-7r+21=0

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

-7r=-21

r=-21/-7

r=+3

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