Question
On Wednesday, Shannon, Joelle, Marion and Erika spent a total of $170. On Thursday, Shannon spent twice of what she spent on Wednesday, Joelle spent the same as what she spent on Wednesday, Marion spent $17 less than what she spent on Wednesday, and Erika spent $7 more than what she spent on Wednesday. All of them spent an equal amount on Thursday. How much did Shannon and Erika spend altogether on Wednesday?
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On Wednesday, Shannon, Joelle, Marion and Erika spent a total of $170. On Thursday, Shannon spent twice of what she spent on Wednesday, Joelle spent the same as what she spent on Wednesday, Marion spent $17 less than what she spent on Wednesday, and Erika spent $7 more than what she spent on Wednesday. All of them spent an equal amount on Thursday. How much did Shannon and Erika spend altogether on Wednesday?