-15 plus 4 plus -22 = -33-15 + 4 = -1111 + -22 = -33
4 + (-15) = 4 - 15 = -11
15 + 2(3 + 4) 15 + 2(7) 15 + 14 Answer is 29.
-15 + 4 = -11
15
10+9+15+8+4+6+11=63
If you mean: -4+3+2s = 15 then s = 8
75 / 15 + 4 + 7 = 16
13
5 + 6 + 4 = 15.
15
4 + 6 - 15 = -5