小学六年级上册数学同步练62页第三题
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甲=3乙+2
甲+乙
=3乙+2+乙
=62
乙=15
甲=3*15+2=47
甲+乙
=3乙+2+乙
=62
乙=15
甲=3*15+2=47
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学校买来4个篮球和5个排球,一共用了185元,1个篮球比1个排球贵8元。篮球的单价是多少元?
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