Which of the following shows an inconsistent system of equations?
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4x - 2y = 10 ; y = 2x - 5
3x + 2y = 1 ; 2x - 3y = 1
2x + y = 2 ; y = -2x - 2
3x + 4y = 5 ; 6x + 8y = 10
Is 4x-2y=10
y=2x-5
the correct answer?