Question 874919
1	x		-1	y	=	11	.............1	
								
3	x	+	10	y	=	-6	.............2	
Eliminate	y							
multiply (1)by		10						
Multiply (2) by		1						
10	x		-10	y	=	110		
3	x	+	10	y	=	-6		
Add the two equations								
13	x				=	104		
/	13							
x	=	8      						
plug value of			x	in (1)				
1	x		-1	y	=	11		
8			-1	y	=	11		
			-1	y	=	11		-8
			-1	y	=	3		
				y	=	-3	

(8,-3)