-13
18 + 13 = 31
-65 + 31 31 - 65 -34
32+14+20+18+16+31+21+16=168
36
4x + 27x + 18 = 0 31x + 18= 0 31x + 18 - 18= 0 - 18 31x = -18 31x / 31 = -18 / 31 x = -.58
18 + 13= 31
58
42 + 24 + 18 = 84
3.33.3
i do believe t's 49
Yes, 31 + 2 equals 33.
24 + 18 + 20 + 22 = 84