Question 704646
-1	x	+	1	y	=	1	.............1	
Total value								
2	x	+	1	y	=	10	.............2	
Eliminate	y							
multiply (1)by		-1						
Multiply (2) by		1						
1	x		-1	y	=	-1		
2	x	+	1	y	=	10		
Add the two equations								
3	x				=	9		
/	3							
x	=	3      						
plug value of			x	in (1)				
-1	x	+	1	y	=	1		
-3		+		y	=	1		
				y	=	1	+	3
				y	=	4		
				y	=	4      		
x=	3							
y=	4	

The solution of system (3,4)

Find the x & y intercept points by plugging x=0,y=0 in both equations.								
equation I								
when x=	0	y=	1	,(	0	,	1	)
when y =	0	x=	1	,(	-1	,	0	)
Equation 2								
when x=	0	y=	10	(	0	,	10	)
when y =	0	x=	5	(	0	,	5	)
								
{{{drawing(300,300,-10,10,-10,10,grid(1),graph(300,300,-10,10,-10,10,y=x+1,y=-2x+10))}}}								




					
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