-15r-13r=19-19r+8

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Solution for -15r-13r=19-19r+8 equation: 



-15r-13r=19-19r+8

We move all terms to the left:

-15r-13r-(19-19r+8)=0

We add all the numbers together, and all the variables

-15r-13r-(-19r+27)=0

We add all the numbers together, and all the variables

-28r-(-19r+27)=0

We get rid of parentheses

-28r+19r-27=0

We add all the numbers together, and all the variables

-9r-27=0

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

-9r=27

r=27/-9

r=-3

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