4=11.5+3r

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Solution for 4=11.5+3r equation: 



4=11.5+3r

We move all terms to the left:

4-(11.5+3r)=0

We add all the numbers together, and all the variables

-(3r+11.5)+4=0

We get rid of parentheses

-3r-11.5+4=0

We add all the numbers together, and all the variables

-3r-7.5=0

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

-3r=7.5

r=7.5/-3

r=-2+1/2

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