Question

A = – (–9) + (–3) – (–2) – (+13)
B = + (–12) – [+3 – (+7) + (–2)]
Calcular: A + B

Answer 1

Respuesta:

-11

Explicación paso a paso:

A = +9-3+2-13 = -5

B = -12-[+3-7-2] = -12-[-6] = -12+6 = -6

A+B= -5+-6 = -5-6 = -11