问题描述：
1.五年级女生人数比男生人数的一半多1人,男生人数比女生人数的3倍少18人,那么五年级共有多少人?
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2.五年级有甲、乙两个班,如果从甲班调10人到乙班去,则甲班人数比乙班少4人；如果从乙班调10人到甲班去,则甲班的人数是乙班的2倍.甲、乙两班原来各有多少人?
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一定要用方程写!3点前是期限!
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2.五年级有甲、乙两个班,如果从甲班调10人到乙班去,则甲班人数比乙班少4人；如果从乙班调10人到甲班去,则甲班的人数是乙班的2倍.甲、乙两班原来各有多少人?
_____________________________________________________________________________________________________________________________________________________________________________________________________
一定要用方程写!3点前是期限!
问题解答：
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