Question

Find the value of C for which the pair of equation cx - y = 2 and 6x - 2y = 3 will have infinitely many solutions

Answer 1

cx - y = 2

cx - y - 2 = 0.

6x - 2y = 3

6x - 2y - 3 = 0 .

a1 / a2 = b1 / b2 = c1 / ç2.

c / 6 = 1/ 2 = -2/-3

c /6 = 1/2

2c = 6.

c = 3.

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