# Math

posted by
**Sherpa**
.

observe the first 3 sets of numbers to determine the missing value in the fourth set: (-5,23,12,16) (1, 39,-14,52) (17,47,42,-12) (25,?,11,31)

posted by
**Sherpa**
.

observe the first 3 sets of numbers to determine the missing value in the fourth set: (-5,23,12,16) (1, 39,-14,52) (17,47,42,-12) (25,?,11,31)