-9r=-8-4

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Solution for -9r=-8-4 equation: 



-9r=-8-4

We move all terms to the left:

-9r-(-8-4)=0

We add all the numbers together, and all the variables

-9r-(-12)=0

We add all the numbers together, and all the variables

-9r+12=0

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

-9r=-12

r=-12/-9

r=1+1/3

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