Question 770919
-5	x		-10	y	=	-22	.............1	
Total value								
10	x	+	15	y	=	35	.............2	
Eliminate	y							
multiply (1)by		3						
Multiply (2) by		2						
-15	x		-30	y	=	-66		
20	x	+	30	y	=	70		
Add the two equations								
5	x				=	4		
/	5							
x	=	1						
plug value of			x	in (1)				
-5	x		-10	y	=	-22		
-4			-10	y	=	-22		
			-10	y	=	-22	+	4
			-10	y	=	-18		
				y	=	2		
x=	1						
y=	2						
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