Half a number plus 5 is 11.What is the number?  Pick:
A) 10 B) 11 C) 12 D) 13 E) 14

Rationale: "solution let x be the number . always replace ` ` is ' ' with an equal sign ( 1 / 2 ) x + 5 = 11 ( 1 / 2 ) x + 5 - 5 = 11 - 5 ( 1 / 2 ) x = 6 2 × ( 1 / 2 ) x = 6 × 2 x = 12 answer c"
Answer: C