Question 509031
4	x	+	8	y	=	16	.............1	
-2	x	+	5	y	=	55	.............2	
Eliminate y								
multiply (1)by 		-5						
Multiply (2) by		8						
-20	x		-40	y	=	-80		
-16	x		40	y	=	440		
Add the two equations								
-36	x				=	360		
/	-36							
x	=	-10      			
plug value of 			x	in (1)				
4	x	+	8	y	=	16		
-40		+	8	y	=	16		
			8	y	=	16	+	40
			8	y	=	56		
				y	=	7

Solution (-10,7)