8-4r=-4

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Solution for 8-4r=-4 equation: 



8-4r=-4

We move all terms to the left:

8-4r-(-4)=0

We add all the numbers together, and all the variables

-4r+12=0

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

-4r=-12

r=-12/-4

r=+3

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