r-4=4r-19

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Solution for r-4=4r-19 equation: 



r-4=4r-19

We move all terms to the left:

r-4-(4r-19)=0

We get rid of parentheses

r-4r+19-4=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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