Question 631279
1	a	+	6	b 	=	1	.............1	
								
1	a	+	2	b 	=	-3	.............2	
Eliminate	y							
multiply (1)by		1						
Multiply (2) by		-3						
1	a		6	b 	=	1		
-3	a		-6	b 	=	9		
Add the two equations								
-2	a				=	10		
/	-2							
a	=	-5    						
plug value of			x	in (1)				
1	a	+	6	b 	=	1		
-5		+	6	b 	=	1		
			6	b 	=	1	+	5
			6	b 	=	6		
				b 	=	1    
a=-5,b=1