28=4+3r

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Solution for 28=4+3r equation: 



28=4+3r

We move all terms to the left:

28-(4+3r)=0

We add all the numbers together, and all the variables

-(3r+4)+28=0

We get rid of parentheses

-3r-4+28=0

We add all the numbers together, and all the variables

-3r+24=0

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

-3r=-24

r=-24/-3

r=+8

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