Henry, Owen, Valen and Neave went shopping with a total of $779. After shopping, they had a total of $107 left. Owen spent $30. The amount Valen spent was ³₄ the amount spent by Henry. The total amount spent by Henry and Owen was $444 less than the total amount spent by Valen and Neave. How much did Henry and Neave spend altogether?

	Henry	Owen	Valen	Neave	Total
Before					$779
Change	- 4 u	- $30	- 3 u	- ?	- $672
After					$107

Total amount that Henry, Owen, Valen and Neave spent
= 779 - 107
= $672

Total amount that Henry and Owen spent
= 4 u + 30

Total amount that Valen and Neave spent
= 4 u + 30 + 444
= 4 u + 474 

Total amount that Henry, Owen, Valen and Neave spent
= 4 u + 30 + 4 u + 474
= 8 u + 504 

8 u + 504 = 672
8 u = 672 - 504
8 u = 168 

1 u = 168 ÷ 8 = 21

Total amount that Owen and Valen spent
= 3 u + 30
= 3 x 21 + 30
= 63 + 30
= $93

Total amount that Henry and Neave spent
= 672 - 93
= $579

Answer(s): $579