Find the value of k for which the system of equations x + 2y – 3 = 0 and 5x + ** + 7 = 0 is inconsistent.
The given system is
x + 2y – 3 = 0 ……(i)
5x + ** + 7 = 0 ……(ii)
Here, a1 = 1, b1 = 2, c1 = -3, a2 = 5, b2 = k and c2 = 7.
For the system, to be consistent, we must have
