Question 461498
motor cyclist A	x 	mph						
motor cyclist B	x+	3						
..								
They are going away from each other.					
So add up their speed.								
								
combined speed = x+x+3		
(2x	+	3	) 			
Time = 	4	hours						
Distance =   	164	miles						
Distance = speed * time								
(2x+	3	)*	4	=	164
8	x 	+	12	=	164			
8	x 	=	164	+	-12			
8	x 	=	152					
/	8							
x=	19	mph	East bound					
west bound	19	+	3	=	22	mph