Question

calcule x-y:

a) X= +8 e y = -5

b) X= -3 e y = -3

c) X= -7 e y = +5

d) X= +3 e y = -9 ​

Answer 1

Resposta:

A) 8-(-5) =

8+5= 13

B) -3-(-3)

-3+3= 0

C) -7-(+5)

-7-5= -12

D) 3-(-9)

3+9= 12