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


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Answer 1

Resposta:

a) 1

b) -15

c) -14

d) -3

Explicação passo a passo:

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