Question

Calculate: (–1) + (1) + (–1) + (1) + (–1) + (1) + (–1)
a)1
b)–1
c)1 or –1
d)None of these

Answer 1

Answer:

option b is the right answer

Answer 2

Answer:

b) -1

Step-by-step explanation:

(–1) + (1) + (–1) + (1) + (–1) + (1) + (–1)

= -1+1-1+1-1+1-1

= -1