Question 578490
0.20	x		-0.50	y	=	-3.80	.............1	
0.30	x	+	0.40	y	=	10.40	.............2	
Eliminate	y							
multiply (1)by		0.4						
Multiply (2) by		0.5						
0.08	x		-0.20	y	=	-1.52		
0.15	x	+	0.2	y	=	5.20		
Add the two equations								
0.23	x				=	3.68		
/	0.23							
x	=	16      						
plug value of			x	in (1)				
0.2	x		-0.5	y	=	-3.8		
3.2			-0.5	y	=	-3.8		
			-0.5	y	=	-3.8		-3.2
			-0.5	y	=	-7		
				y	=	14