1-3r-4r=8

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Solution for 1-3r-4r=8 equation: 



1-3r-4r=8

We move all terms to the left:

1-3r-4r-(8)=0

We add all the numbers together, and all the variables

-7r-7=0

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

-7r=7

r=7/-7

r=-1

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