<PRE><B>Question 496723</B>
-1	x	+	6	y	=	54	.............1				
1	y	=	9		-3	x	---------2				
/	1	=									
	y	=	9		-3	x					
Substitute y in 		(1)									
-1	x	+	6	(	9		-3	x	)	=	54
-1	x	+	54	+	-18	x	=	54			
-1	x		-18	x	=	54	-54				
-19	x	=	0								
/	-19										
x=	0										
Plug the value of x in (1)											
-1	x	+	6	y	=	54					
-1	*	0	+	6	y	=	54				
0	+	6	y	=	54						
6	y	=	54								
/	6										
y=	9	

Solution (0,9)									
m.ananth@hotmail.ca											
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