Question 377853
2x+y=13
4x+2y=23

multiply the first equation by -2
-4x-2y=-26
add to second
-4x+4x+2y-2y=23-26
0=-3
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This system has no solution. They are parallel lines
Just have a look at the graphs
{{{graph(300,300,-1,20,-1,25,(-2x+13),(-2x+23))}}}
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m.annath@hotmail.ca