Question

ayuda
(+15)-(-4)=
(-9)-(-7)=
(-5)-(+8)=
(+13)-(+18)

Answer 1

1) 15+4=19
2) -9+7=-2
3) -5-8=-13
4) 13-18=-5
Espero ayudarte :)

Answer 2

solucion:
(+15)-(-4)=  15 +4 = 19

(-9)-(-7)=  -9+7 = -2

(-5)-(+8)= -5-8 = -13

(+13)-(+18) = 13 - 18 = - 5

saludos