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Is |x| = 4?
(1) |11 + x| = 15
(2) 11 + |x| = 15
(1) |11 + x| = 15
(2) 11 + |x| = 15
Not sure why 1 isn't sufficient since it yields x=-4 and 4, so when plugged into |x| it checks out?
25 Jun 2016, 18:59
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ha15
11+x=15 OR -11-x=15
x=4 OR x=-26
|x|=4 OR 26
Not Sufficient
P.s. Looks like a silly mistake. Everyone's been there.
09 Jul 2017, 03:46
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I'm still learning this, so the logic I applied:
1) x = 4 or - 26, but |x|(absolute distance from zero)) is 4 or 26. Insuff
2) x = 4 or -4, but |x| = 4 only (absolute distance from zero). Suff
I hit E initially thinking x gives us 4 different values, but when I re read, its asking |x|, the absolute distance. Hope this was helpful to anyone struggling with this
1) x = 4 or - 26, but |x|(absolute distance from zero)) is 4 or 26. Insuff
2) x = 4 or -4, but |x| = 4 only (absolute distance from zero). Suff
I hit E initially thinking x gives us 4 different values, but when I re read, its asking |x|, the absolute distance. Hope this was helpful to anyone struggling with this
