<PRE><B>Question 428471</B>
15	x	+	-10	y	=	1	.............1	
								
5	y	=	-2		15	x	---------2	
/	5	=						
	y	=	-0.4		3	x		
Plug the value of y in (1)								
15x-10(-0.4+3x)
15x+4-30x=1
15x-30x=1-4	
-15x=-3					
/-15							
x=0.2							
Plug the value of x in (1)								
15x-10y=1		
15*0.2-10y=1	
3-10y=1			
-10y=-2					
/-10							
y=0.2							
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