the pair of linear equation 7x - 5y = 4 and 4x + ky = 5 will have a unique solution . what is the value of k ?
Answers
Answered by
3
Step-by-step explanation:
k=all real values of k except -20/7
Step-by-step explanation:
when a unique solution exists for two linear equations in two variables
a1/a2is not equal to b1/b2
therefore,7/4 not equal to -5/k
k not equal to-20/7
k=all real values of k except -20/7
Follow over_power_vincenzo in instagram
Similar questions