Question

Calcular x + y para:
a) x=+5 e y=7
b) x=-3 e y=-7
c) x=+8 e y=+11
d) x=-15 e y=-10

Answer 1

A) 5 + 7 = 13
B) (-3) + (-7) = -10
C) 8 + 11 = 19
D)  (-15) + (-10) = -25
 : )

Answer 2

a) x + y = 5 + 7 = 12. b) x + y = -3 + (-7) = -3-7 = -10. c) x + y = 8 + 11 = 19. d) x + y = -15 + (-10) = -15 - 10 = -25