Question 479560
3	x	+	1	y	=	10	.............1	
0.67	x	+	1	y	=	3	.............2	
								
multiply (1)by 		-1						
Multiply (2) by		1						
-3	x		-1	y	=	-10		
0.67	x	+	1	y	=	3		
Add the two equations								
-2.33	x				=	-7		
/	-2.33							
x	=	3    			
plug value of 			x	in (1)				
3	x	+	1	y	=	10		
9		+	1	y	=	10		
			1	y	=	10		-9
			1	y	=	1		
				y	=	1

(3,1)