Question

1. which expression is equivalent to 12 - 18? a. 12 + (-18) b. -12 + 18 c. 12 - (-18) d. -12 - (-18)

Explanation:

Step1: Calculate original expression

$12 - 18 = -6$

Step2: Calculate Option A

$12 + (-18) = 12 - 18 = -6$

Step3: Calculate Option B

$-12 + 18 = 6$

Step4: Calculate Option C

$12 - (-18) = 12 + 18 = 30$

Step5: Calculate Option D

$-12 - (-18) = -12 + 18 = 6$

Answer:

A. $12 + (-18)$