Question

which pair of expressions are equal? mark all that apply
a. $14-9$ and $14+(-9)$
b. $18-6$ and $-18+6$
c. $-7-22$ and $22-(-7)$
d. $3-30$ and $3+(-30)$
e. $10-5$ and $-5-10$
f. $-23-4$ and $-23+(-4)$

Explanation:

Step1: Evaluate pair a

$14-9=5$, $14+(-9)=14-9=5$

Step2: Evaluate pair b

$18-6=12$, $-18+6=-12$

Step3: Evaluate pair c

$-7-22=-29$, $22-(-7)=22+7=29$

Step4: Evaluate pair d

$3-30=-27$, $3+(-30)=3-30=-27$

Step5: Evaluate pair e

$10-5=5$, $-5-10=-15$

Step6: Evaluate pair f

$-23-4=-27$, $-23+(-4)=-23-4=-27$

Answer:

a. $14-9$ and $14+(-9)$
d. $3-30$ and $3+(-30)$
f. $-23-4$ and $-23+(-4)$