Question

Fiind the value of k,so that the following system of equations has unique sollution 4x-5y=k;2x-3y=12
Answer Step by step plz!

Answer 1

for unique solution

a1/a2 is not equal to b1/b2

so 4/-5is not equal to 2/-3

since -20 is not equal to -6

so this equation has a unique solution

therefore k can be any number else than 12