Question

which of the following expressions are equivalent to -4 + (4 + 5)? choose 2 answers: a (-4 + 4) + 5 b (-4 - 4) + 5 c -4 + (-4) + 5 d 5

Explanation:

Step1: Simplify the original expression

$-4+(4 + 5)=-4 + 9=5$

Step2: Simplify option A

$(-4 + 4)+5=0 + 5=5$

Step3: Simplify option B

$(-4-4)+5=-8 + 5=-3$

Step4: Simplify option C

$-4+(-4)+5=-8 + 5=-3$

Step5: Check option D

The value of option D is 5.

Answer:

A. $(-4 + 4)+5$, D. 5