7x-5y+4=0,4x+ky +4=0. Find the value of k for unique solution.
Answers
Answered by
3
Answer:
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
Answered by
0
Answer:
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
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