3=3r-4r

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Solution for 3=3r-4r equation: 



3=3r-4r

We move all terms to the left:

3-(3r-4r)=0

We add all the numbers together, and all the variables

-(-1r)+3=0

We get rid of parentheses

1r+3=0

We add all the numbers together, and all the variables

r+3=0

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

r=-3

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