Question

4x - 3y = 6
kx + (k-1)y = 9
Write down the condition for unique solution
Find the value of k​

Answer 1

Answer:

Step-by-step explanation:

for unique solution,  $\frac{a_{1} }{a_{2} } \neq \frac{b_{1} }{b_{2} }$

therefore, 4/k ≠ -3/(k-1)

               4(k-1)≠ -3k

                4k-4 ≠ -3k

                 7k ≠ 4

                    k≠ 4/7