<PRE><B>Question 585565</B>
1	x	+	1	y	=	20	.............1	
30	x	+	50	y	=	880	.............2	
Eliminate	y							
multiply (1)by		-50						
Multiply (2) by		1						
-50	x		-50	y	=	-1000		
30	x	+	50	y	=	880		
Add the two equations								
-20	x				=	-120		
/	-20							
x	=	6      						
plug value of			x	in (1)				
1	x	+	1	y	=	20		
6    		+	1	y	=	20		
			1	y	=	20-6      
			1	y	=	14      		
				y	=	14      		
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