Question 549272
-12	x	+	27	y	=	60	.............1	
-6	x		-6	y	=	30	.............2	
Eliminate 	y							
multiply (1)by 		6						
Multiply (2) by		27						
-72	x		162	y	=	360		
-162	x	+	-162	y	=	810		
Add the two equations								
-234	x				=	1170.00		
/	-234							
x	=	-5      						
plug value of 			x	in (1)				
-12	x	+	27	y	=	60		
60		+	27	y	=	60		
			27	y	=	60		-60
			27	y	=	0		
				y	=	0      		
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