Question

Hallar el valor de: 6 - A. 7. Si: A = {(-30) + (-100)-(-5)} - (+8 -9) B = -(-16 + 2-5) - {+5 -(-6-9)}​

Answer 1

A:

{(-30) + (-100)-(-5)} - (+8 -9)

=−130−(−5)−(8−9)

=−125−(8−9)

=−125−(−1)

=−124

B:

-(-16 + 2-5) - {+5 -(-6-9)}

=−(−14−5)−(5−(−6−9))

=−(−19)−(5−(−6−9))

=19−(5−(−6−9))

=19−(5−(−15))

=19−20

=−1