Question

3. Dados : A= { - (15 - 8) - ( 10 + 7)
B= { - (15 - 10) - (5 - 0)

Answer 1

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{ - (15 - 8) - ( 10 + 7)

−(15−8)−(10+7)

=−7−(10+7)

=−7−17

=−24

{ - (15 - 10) - (5 - 0)

−(15−10)−(5−0)

=−5−(5−0)

=−5−5

=−10