Question 684858
5	x	+	2	y  	=	8								
y=	-5/ 2x  +4								
Assume values of x and plug in the equation to get values of y.												
Plot the points														
x	0	4	2											
y=	4	-6	-1											
(x,y)	(0,4),(4,-6),(	2-1)	

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1	x	+	-1	y  	=	3							
y=	1      	x  +	-3										
													
Assume values of x and plug in the equation to get values of y.													
Plot the points													
x	0	4	2										
y=	-3	1	-1										
(x,y)	(0,-3),(4,1),(	2,-1)

														
{{{drawing(300,300,-10,10,-10,10,grid(1),circle(0,-3,0.3),circle(4,1,0.3),circle(2,-1,0.3),circle(4,-6,0.3),circle(0,4,0.3),circle(2,-1),graph(300,300,-10,10,-10,10,y=x-3,y=(-5/2)x+4))}}}												

The solution is (2,-1)