Question 553261
Adult tickets			x	numbers				
child tickets			y	numbers				
								
22	x	+	15	y	=	228	.............1	
1	x	+	1	y	=	11	.............2	
Eliminate y								
multiply (1)by 		1						
Multiply (2) by		-15						
22	x		15	y	=	228		
-15	x		-15	y	=	-165		
Add the two equations								
7	x				=	63		
/	7							
x	=	9.00		OR	9    			
plug value of 			x	in (1)				
22	x	+	15	y	=	228		
198		+	15	y	=	228		
			15	y	=	228-198
			15	y	=	30		
				y	=	2.00		OR
Adult tickets			9    	numbers				
child tickets			2    	numbers				
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