<PRE><B>Question 491146</B>
3	r		-2	s	=	5	.............1		
2	r	+	3	s	=	12	.............2		
Eliminate y									
multiply (1)by 		3							
Multiply (2) by		2							
9	r		-6	s	=	15			
4	r		6	s	=	24			
Add the two equations									
13	r				=	39			
/	13								
r	=	3      				
plug value of 			r	in (1)					
3	r	+	-2	s	=	5			
9		+	-2	s	=	5			
			-2	s	=	5		-9	
			-2	s	=	-4			
				s	=	2    
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