Question 725631
4x-6y=5
6x-9y=4 
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Multiply thru the top equation by -3
Multiply thru the bottom equation by 2
-12x + 18y = -15
12x  - 18y =  8
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Adding you get:
0 + 0 = -7
That is a contradiction and indicates
there is no solution for the systerm.
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Note: If you graped the two equations you
would find that they are parallel.
Cheers,
Stan H.