19 + 2 = 21
19 + (-2) + (-26) = -9
19 - 2 - 26 = - 9
(21)3 -(19)3 (21)2+(19)2+(399)
-2
19 + (2-4) + 3 = 19 + 2 - 4 + 3 = 21 - 4 +3 = 17 +3 = 20
21.
4 - 7 + 14 + 2 - 19 + 6 = 0
4x plus 7 plus 3x equals 19 plus xx = 2
303
2 + 17 = 19
17 + 2 = 19
9 + 2 + 30 - 5 + 18 - 19 = -1