(3)化简3(a-2)-(3a+1)的结果是 A.-5 B.-7 C.-3 D.6a-7

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(3)化简3(a-2)-(3a+1)的结果是 A.-5 B.-7 C.-3 D.6a-7
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(3)化简3(a-2)-(3a+1)的结果是 A.-5 B.-7 C.-3 D.6a-7
(3)化简3(a-2)-(3a+1)的结果是 A.-5 B.-7 C.-3 D.6a-7

(3)化简3(a-2)-(3a+1)的结果是 A.-5 B.-7 C.-3 D.6a-7
B