Question 723018
x= 	number of kids							
y=	number of adults							
 								
1.00	x		-1.00	y	=	6.00	.............1	
Total value								
3.50	x	+	7.50	y	=	65.00	.............2	
Eliminate	y							
multiply (1)by		7.50						
Multiply (2) by		1.00						
7.50	x		-7.50	y	=	45.00		
3.50	x	+	7.50	y	=	65.00		
Add the two equations								
11.00	x				=	110.00		
/	11.00							
x	=	10.00						
plug value of			x	in (1)				
1.00	x		-1.00	y	=	6.00		
10.00			-1.00	y	=	6.00		
			-1.00	y	=	6.00		-10
			-1.00	y	=	-4.00		
				y	=	4.00		
x=	10.00		number of kids					
y=	4.00		number of adults					
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