9-4=3r-8

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Solution for 9-4=3r-8 equation: 



9-4=3r-8

We move all terms to the left:

9-4-(3r-8)=0

We add all the numbers together, and all the variables

-(3r-8)+5=0

We get rid of parentheses

-3r+8+5=0

We add all the numbers together, and all the variables

-3r+13=0

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

-3r=-13

r=-13/-3

r=4+1/3

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