-4=r-19

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Solution for -4=r-19 equation: 



-4=r-19

We move all terms to the left:

-4-(r-19)=0

We get rid of parentheses

-r+19-4=0

We add all the numbers together, and all the variables

-1r+15=0

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

-r=-15

r=-15/-1

r=+15

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