Question 773247
x= 	Number of	adults						
y=	Number of	students						
Total tickets								
1	x	+	1	y	=	110	.............1	
Total value								
9	x	+	5	y	=	650	.............2	
Eliminate	y							
multiply (1)by		-5						
Multiply (2) by		1						
-5	x		-5	y	=	-550		
9	x	+	5	y	=	650		
Add the two equations								
4	x				=	100		
/	4							
x	=	25						
plug value of			x	in (1)				
1	x	+	1	y	=	110		
25		+		y	=	110		
				y	=	110		-25
				y	=	85		
				y	=	85		
x=	25		Number of	adults				
y=	85		Number of	students				
m.ananth@hotmail.ca