Question 766081
4	x	+	3	y	=	1	.............1	
Total value								
1	x	+	1	y	=	1	.............2	
Eliminate	y							
multiply (1)by		1						
Multiply (2) by		-3						
4	x		3	y	=	1		
-3	x		-3	y	=	-3		
Add the two equations								
1	x				=	-2		
/	1							
x	=	-2						
plug value of			x	in (1)				
4	x	+	3	y	=	1		
-8		+	3	y	=	1		
			3	y	=	1	+	8
			3	y	=	9		
				y	=	3		
x=	-2						
y=	3						
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