Question 550931
first seat	x	numbers							
second seat	y	numbers							
									
1	x	+	1	y	=	20000	.............1		
45	x	+	55	y	=	955000	.............2		
Eliminate y									
multiply (1)by 		-55							
Multiply (2) by		1							
-55	x		-55	y	=	-1100000			
45	x		55	y	=	955000			
Add the two equations									
-10	x				=	-145000			
/	-10								
x	=	14500				
plug value of 			x	in (1)					
1	x	+	1	y	=	20000			
14500		+	1	y	=	20000			
			1	y	=	20000		-14500	
			1	y	=	5500			
				y	=	5500   
first seat	14500    	numbers							
second seat	5500    	numbers							
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