Question 481079
0.3x-0.2y=4
0.5x+0.3y=1

multiply both equations by 10
we get
3	x		-2	y	=	40	.............1	
5	x	+	3	y	=	10	.............2	
Eliminate y								
multiply (1)by 		3						
Multiply (2) by		2						
9	x		-6	y	=	120		
10	x	+	6	y	=	20		
Add the two equations								
19	x				=	140		
/	19							
x	=	7.37			
plug value of 			x	in (1)				
3	x	+	-2	y	=	40		
22.11		+	-2	y	=	40		
			-2	y	=	40-22.11
			-2	y	=	17.89		
				y	=	-8.95