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On comparing the ratios (a1)/(a2), (b1)/...

On comparing the ratios `(a_1)/(a_2), (b_1)/b_2 ` and `(c_1)/(c_2)` find out whether the lines representing the following pairs of linear equations intersect at point, are parallel or coincident : 5x-4y+8=0 7x+6y-9=0 .

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