-19. Because in -15 +(-4) , a plus and a negative = to a negative sign. Therefore -15 take away four, Is like counting upwards but in negatives. I hope that makes sense......
The same as 15 - 4, or 11.
15 + 4 + 4 = 23
-11
19
15 + 4 = 19
It is 19.
-15 plus 4 plus -22 = -33-15 + 4 = -1111 + -22 = -33
4 + (-15) = 4 - 15 = -11
15
-15 + 4 = -11
15 + 2(3 + 4) 15 + 2(7) 15 + 14 Answer is 29.
10+9+15+8+4+6+11=63
75 / 15 + 4 + 7 = 16
If you mean: -4+3+2s = 15 then s = 8
13
5 + 6 + 4 = 15.
15
4 + 6 - 15 = -5