Question 377853
Solve using the multiplication principle first. Then use the elimination method.
2x+y=13
4x+2y=23
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Multiply the 1st Eq. by -2 to get:
-4x-2y = -26
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Add that to the 2nd equation to get:
0 = -3
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That is a contradictions which resulted because
you assumed the x's in the two equations were
the same and the y's in the two equations were
the same.
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They are not.
The system of equations is said to be "inconsistent".
If you graph the two equations you will see that
they are parallel.  There is no (x,y)point that lies
on both of the lines.
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Cheers,
Stan H.