Question

Evaluate the expression when x = 5: 10 I7-xI (A)-120 (B)20 (C)-20 (D)123

Answer 1

10|7 - x|
10|7 - 5|
10|2|
10(2)
20

B.20

Answer 2

$10|7-x| \hbox{ when } x=5 \\ 10|7-5|=10|2|=10 \times 2=\boxed{20} \Leftarrow \hbox{answer B}$