Question 549491
x-y =10-------------x>y
2y+3x=55

1	x		-1	y	=	10	.............1
3	x	+	2	y	=	55	.............2
Eliminate 	y						
multiply (1)by 		2					
Multiply (2) by		1					
2	x		-2	y	=	20	
3	x	+	2	y	=	55	
Add the two equations							
5	x				=	75.00	
/	5						
x	=	15      					
plug value of 			x	in (1)			
1	x	+	-1	y	=	10	
15		+	-1	y	=	10	
			-1	y	=	10	
			-1	y	=	-5	
				y	=	5