Question 558274
4	x	+	2	y	=	-18	.............1	
5	x	+	1	y	=	-27	.............2	
Eliminate y								
multiply (1)by 		1						
Multiply (2) by		-2						
4	x		2	y	=	-18		
-10	x		-2	y	=	54		
Add the two equations								
-6	x				=	36		
/	-6							
x	=	-6		
plug value of 			x	in (1)				
4	x	+	2	y	=	-18		
-24		+	2	y	=	-18		
			2	y	=	-18	+	24
			2	y	=	6		
				y	=	3

solution (-6,3)