-7-8r=1

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Solution for -7-8r=1 equation: 



-7-8r=1

We move all terms to the left:

-7-8r-(1)=0

We add all the numbers together, and all the variables

-8r-8=0

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

-8r=8

r=8/-8

r=-1

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