考试类型: Mathematics > Standard Multiple Choice

Read the following SAT test question and then click on a button to select your answer.

If , then

A. a/4

B. a/2

C. a

D. 2a

E. 4a

正确答案:C

解析:

You are given that . Dividing both sides of the equation by 2 gives . Thus, the answer is a.