Question 885450
5.00	x	+	4.00	y	=	19.75	.............1	
								
1.00	x	+	2.00	y	=	5.75	.............2	
Eliminate	y							
multiply (1)by		1.00						
Multiply (2) by		-2.00						
5.00	x		4.00	y	=	19.75		
-2.00	x		-4.00	y	=	-11.50		
Add the two equations								
3.00	x				=	8.25		
/	3.00							
x	=	2.75						
plug value of			x	in (1)				
5.00	x	+	4.00	y	=	19.75		
13.75		+	4.00	y	=	19.75		
			4.00	y	=	19.75		-13.75
			4.00	y	=	6.00		
				y	=	1.50		
x=3,y=1.5