Question

What is the value of the rational expression below when x is equal to 5?

15-x
x-10
OA. 10
O.B. -2
OC. 2
O D. -10

Answer 1

Answer: A. 10

Explanation:

Plug in x which is 5 to equation 1

15-5=10

Plug in x which is 5 to equation 2

5-10= -5