Tom, Oliver, Glen and Ethan went shopping with a total of $600. After shopping, they had a total of $33 left. Oliver spent $50. The amount Glen spent was ⁵₇ the amount spent by Tom. The total amount spent by Tom and Oliver was $215 less than the total amount spent by Glen and Ethan. How much did Tom and Ethan spend altogether?

	Tom	Oliver	Glen	Ethan	Total
Before					$600
Change	- 7 u	- $50	- 5 u	- ?	- $567
After					$33

Total amount that Tom, Oliver, Glen and Ethan spent
= 600 - 33
= $567

Total amount that Tom and Oliver spent
= 7 u + 50

Total amount that Glen and Ethan spent
= 7 u + 50 + 215
= 7 u + 265 

Total amount that Tom, Oliver, Glen and Ethan spent
= 7 u + 50 + 7 u + 265
= 14 u + 315 

14 u + 315 = 567
14 u = 567 - 315
14 u = 252 

1 u = 252 ÷ 14 = 18

Total amount that Oliver and Glen spent
= 5 u + 50
= 5 x 18 + 50
= 90 + 50
= $140

Total amount that Tom and Ethan spent
= 567 - 140
= $427

Answer(s): $427