Question 467125
Son's age	x												
father's age 6x									
	9	years later											
Son's age x+9										
father's age 6x+9								
father's age	3	times older											
	6x+9=3(x+9)		
	6x+9=3x+27				
	3x=27-9					
	3x=18								
	/3										
	x=6 Son's age								
		6*6=36 	years		father's age