若a/3=5/b=7/c,且2a+3b=28,求a b c的值

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若a/3=5/b=7/c,且2a+3b=28,求abc的值若a/3=5/b=7/c,且2a+3b=28,求abc的值若a/3=5/b=7/c,且2a+3b=28,求abc的值题目好像不对.

若a/3=5/b=7/c,且2a+3b=28,求a b c的值
若a/3=5/b=7/c,且2a+3b=28,求a b c的值

若a/3=5/b=7/c,且2a+3b=28,求a b c的值
题目好像不对.