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AMC10 2000 A

AMC10 2000 A · Q9

AMC10 2000 A · Q9. It mainly tests Absolute value.

If $|x - 2| = p$, where $x < 2$, then $x - p =$
若 $|x - 2| = p$,其中 $x < 2$,则 $x - p =$
(A) -2 -2
(B) 2 2
(C) 2 - 2p 2 - 2p
(D) 2p - 2 2p - 2
(E) |2p - 2| |2p - 2|
Answer
Correct choice: (C)
正确答案:(C)
Solution
Answer (C): Since $x<2$, it follows that $\left|x-2\right|=2-x$. If $2-x=p$, then $x=2-p$. Thus $x-p=2-2p$.
答案(C):由于 $x<2$,所以 $\left|x-2\right|=2-x$。若 $2-x=p$,则 $x=2-p$。因此 $x-p=2-2p$。
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