a/b=3
a=3b
(a+3b)/(2a-b)=(3b+3b)/(6b-b)=6/5
已知b分之a(chǎn)=3,則2a-b分之a(chǎn)+3b=
已知b分之a(chǎn)=3,則2a-b分之a(chǎn)+3b=
數(shù)學(xué)人氣:492 ℃時間:2020-07-04 01:20:48
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