What type of solution does the pair of equations have: x + 2y + 5 = 0, -3x - 6y + 1 = 0?

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No solution.
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On observing the given equations, we can say that the ratio of coefficients of 'x' and 'y' terms is same and is equal to (-1/3) but this is not equal to the ratio of constant terms. Hence, no solution.
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