4r+15r=-19

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Solution for 4r+15r=-19 equation: 



4r+15r=-19

We move all terms to the left:

4r+15r-(-19)=0

We add all the numbers together, and all the variables

19r+19=0

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

19r=-19

r=-19/19

r=-1

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