Question

calcule x-y a)X=+6 e y=+5
b)X=-7 e y=+8
c)X=-9 e y=-5
d)X=+12 e y=-15

Answer 1

Calcule x - y:

a) x = + 6 e y = +5
6 - 5
= 1

b) x = -7 e y = 8
- 7 - 8
= -15

c) x = -9 e y = -5
- 9 - 5
= - 14

d) x = 12 e y = -15
12 - 15
= -3

Answer 2

Resolvi assim, espero que entenda.