已知a-b不等于0,且2a-3b等于0,则代数式a-b分之2a-b的值是多少?

问答/357℃/2025-03-16 04:21:19

优质解答：

2a-3b=0

a=3b/2

(2a-b)/(a-b)

=(3b-b)/(3b/2-b)

=2b/(b/2)

=4

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