Which of the following inequalities is equivalent to -4＜x＜8?

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问题 Which of the following inequalities is equivalent to -4＜x＜8?

选项 A、|x-1|＜7
B、|x+2|＜6
C、|x+3|＜5
D、|x-2|＜6
E、None of the above

答案D

解析 |x-2|＜6 also represents all of the values for x between -4 and 8. A is equivalent to -6＜x＜8, B is equivalent to - 8＜x＜4, and C is equivalent to -8＜x＜2.

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Which of the following inequalities is equivalent to -4＜x＜8?

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