Flynn spent ³₇ of his salary and gave $664 to his wife. Of the remaining amount, he saved ¹₄ of it and gave ³₇ of it to his grandparents. He then donated ²₃ of what he had left away and gave the remaining $28 to his son. What was Flynn's salary?

Spent	Wife	Saved	Grandparents	Donated	Son	Total
3 u	4 u					7 u
	$664	1 p	3 p
			3x3	4x3
				2x4	1x4
			9 b	8 b	4 b $28

Amount that his son received = 4 b

4 b = 28
1 b = 28 ÷ 4 = 7

Amount of his salary given to his grandparents, his donations and his son
= 9 b + 8 b + 4 b
= 21 b
= 21 x 7
= $147

3 p = 147 
1 p = 147 ÷ 3 = 49

Amount of his salary given to his savings, his grandparents, his donations and his son
= 1 p + 3 p
= 4 p
= 4 x 49
= $196

Amount of his salary given to his wife, his savings, his grandparents, his donations and his son
= 664 + 196
= $860 

4 u = 860 
1 u = 860 ÷ 4 = 215

Flynn's salary
= 7 u
= 7 x 215
= $1505

Answer(s): $1505