Cody, Ivan, Justin and Xavier went shopping with a total of $850. After shopping, they had a total of $149 left. Ivan spent $70. The amount Justin spent was ³₇ the amount spent by Cody. The total amount spent by Cody and Ivan was $267 less than the total amount spent by Justin and Xavier. How much did Cody and Xavier spend altogether?

	Cody	Ivan	Justin	Xavier	Total
Before					$850
Change	- 7 u	- $70	- 3 u	- ?	- $701
After					$149

Total amount that Cody, Ivan, Justin and Xavier spent
= 850 - 149
= $701

Total amount that Cody and Ivan spent
= 7 u + 70

Total amount that Justin and Xavier spent
= 7 u + 70 + 267
= 7 u + 337 

Total amount that Cody, Ivan, Justin and Xavier spent
= 7 u + 70 + 7 u + 337
= 14 u + 407 

14 u + 407 = 701
14 u = 701 - 407
14 u = 294 

1 u = 294 ÷ 14 = 21

Total amount that Ivan and Justin spent
= 3 u + 70
= 3 x 21 + 70
= 63 + 70
= $133

Total amount that Cody and Xavier spent
= 701 - 133
= $568

Answer(s): $568