191问答库 > 50x（3800-x）+80x=274000这个方程怎么解？急！！！

50x（3800-x）+80x=274000这个方程怎么解？急！！！

2025-03-16 14:21:31
推荐回答（3个）
回答1：

设成人票出售了y张，则儿童票出售了(3800-y)张，则80y+50(3800-y)=274000
80y+190000-50y=274000
30y=274000-190000
30y=84000
y=2800
3800-2800=1000
所以成人票卖出了2800张，儿童票卖出了1000张。

回答2：

回答3：

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