Question 785786
x= 	Number of	Orchestra seats						
y=	Number of	balcony seats						
 								
1	x	+	1	y	=	100	.............1	
Total value								
75	x	+	40	y	=	5400	.............2	
Eliminate	y							
multiply (1)by		-40						
Multiply (2) by		1						
-40	x		-40	y	=	-4000		
75	x	+	40	y	=	5400		
Add the two equations								
35	x				=	1400		
/	35							
x	=	40						
plug value of			x	in (1)				
1	x	+	1	y	=	100		
40		+		y	=	100		
				y	=	100		-40
				y	=	60		
				y	=	60		
x=	40		Number of	Orchestra seats				
y=	60		Number of	balcony seats				
m.ananth@hotmail.ca