这道数学题怎么做啊?麻烦翻译一下,然后写下算式~~拜托了!
Dawn and Nancy helped their father,a fruit seller,to sort two baskets of oranges.Dawn's basket contained 3 times as many oranges as Nancy's basket.After Dawn threw away 186rotton oranges and Nancy therw away 28 rotten oranges,they have the same number of oranges.How many oranges were there in each girl's basket at first?