-8-13r=863

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Solution for -8-13r=863 equation: 



-8-13r=863

We move all terms to the left:

-8-13r-(863)=0

We add all the numbers together, and all the variables

-13r-871=0

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

-13r=871

r=871/-13

r=-67

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