For what value of k will the following pair of linear equations have infinitely many solutions?
2x - 3y = 7
(k + 1)x + (1 - 2k)y = (5k - 4)
Given:
Equation 1: 2x - 3y = 7
Equation 2: (k + 1)x + (1 - 2k)y = (5k - 4)
Both the equations are in the form of :
a1x + b1y = c1 & a2x + b2y = c2 where
For the system of linear equations to have infinitely many solutions, we must have
………(i)
According to the problem:
a1 = 2
a2 = k + 1
b1 = -3
b2 = 1-2k
c1 = 7
c2 = 5k-4
Putting the above values in equation (i) we get: