Mathematics > Standard Multiple Choice
Read the following SAT test question and then click on a button to select your answer.
If a - b = b - 3 = 6, what is the value of a?
(A) -3
(B) 6
(C) 9
(D) 15
(E) 18
SAT I 每日一问：2013年7月10日
2013-07-10 09:59
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