Question 909345
x= 	No of	kids						
y=	No of	adults						
 								
1.00	x		-1.00	y	=	8.00	.............1	
								
3.00	x	+	7.50	y	=	45.00	.............2	
Eliminate	y							
multiply (1)by		7.50						
Multiply (2) by		1.00						
7.50	x		-7.50	y	=	60.00		
3.00	x	+	7.50	y	=	45.00		
Add the two equations								
10.50	x				=	105.00		
/	10.50							
x	=	10.00						
plug value of			x	in (1)				
1.00	x		-1.00	y	=	8.00		
10.00			-1.00	y	=	8.00		
			-1.00	y	=	8.00		-10
			-1.00	y	=	-2.00		
				y	=	2.00		1
x=	10		No of	kids				
y=	2		No of	adults				
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