23=8+3r

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Solution for 23=8+3r equation: 



23=8+3r

We move all terms to the left:

23-(8+3r)=0

We add all the numbers together, and all the variables

-(3r+8)+23=0

We get rid of parentheses

-3r-8+23=0

We add all the numbers together, and all the variables

-3r+15=0

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

-3r=-15

r=-15/-3

r=+5

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