Question 999264


3	x		-1	y	=	5	.............1	
Total value								
1	x		-1	y	=	7	.............2	
Eliminate	y							
multiply (1)by		-1						
Multiply (2) by		1						
-3	x		1	y	=	-5		
1	x		-1	y	=	7		
Add the two equations								
-2	x				=	2		
/	-2							
x	=	-1						
plug value of			x	in (1)				
3	x		-1	y	=	5		
-3			-1	y	=	5		
			-1	y	=	5	+	3
			-1	y	=	8		
				y	=	-8