Question 603101
x		number of boys						
y		number of girls						
Total	attended							
x+y	=	33	.............1	
								
x-y=5	.............2	
Eliminate	y							
		
Add the two equations								
2	x				=	38		
/	2							
x	=	19						
plug value of			x	in (1)				
1	x	+	1	y	=	33		
19		+	1	y	=	33		
			1	y	=	33-19
			1	y	=	14		
				y	=	14		
19		number of boys						
14		number of girls						
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