Question

Which of the following expressions is equivalent to a + (-b)

A. (-b) + a
B. b + (-a)
C. (-a) + b
D. None of the above

PLEASE HELP!!!

Answer 1

Use photo math it will help

Answer 2

For this case we must find an expression equivalent to:

$a + (- b)$

It is observed that the negative sign is associated with the variable "b". So, we have to express:

$(-b) + a$ is equivalent to the initial expression but of different order.

ANswer:

$(-b) + a$

Option A