8-4r=16

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Solution for 8-4r=16 equation: 



8-4r=16

We move all terms to the left:

8-4r-(16)=0

We add all the numbers together, and all the variables

-4r-8=0

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

-4r=8

r=8/-4

r=-2

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