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If x - y = 8, then which of the following must be true?

  1. Both x and y must be positive for any value of x and y.
  2. If x is positive, y must be negative for any value of x and y.
  3. If x is negative, y must be positive for any value of x and y.

Select the correct answer using the code given below.

[Paper II (CSAT) Analysis 2018]
A
B
C
D

EXPLANATION

Answer is (d). x = 10 x = 5 x = -1 y =2 y = –3 y = ± 9 If ...
...
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