Is |x| = y - z?
(1) x + y = z
(2) x < 0
My approach is different from that of the book:
x = z - y or - x = y - z, so we need to know the sign of x
if x < 0, then -(-x) = y - z or |x| = y - z.
OG - 105
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- AleksandrM
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- AleksandrM
- Legendary Member
- Posts: 566
- Joined: Fri Jan 04, 2008 11:01 am
- Location: Philadelphia
- Thanked: 31 times
- GMAT Score:640
ksh,
Your equation is contingent on what the sign of x is.
OA is C. Thank you both.
Your equation is contingent on what the sign of x is.
OA is C. Thank you both.