* what is r

[obinna]

DS

What is r ?

i] |r-1| = |r-3|

ii] [r-4| = 2

[cooper2248817]

start with the easy statement which would be 2

r-4=2 or -r+4=2
r=6 or r=2

ace

r-1=-r-3 or r-1=-r+3
no solutions r=2


so A

[JonathanSchneider]

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