Question

4 - 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

Resposta:

a) 6-(5)= 1

b) -7-(8)= -15

c) -9-(-5)= -4

d) 12-(-15)= 27