Ask Question
11 November, 23:29

Find the value of k so that x = - 1 and y = -1 is a solution of the linear equation 9kx + 12ky = 63

+2
Answers (1)
  1. 12 November, 00:48
    0
    k = - 3

    Step-by-step explanation:

    Given

    9kx + 12ky = 63

    Since x = - 1 and y = - 1 are solutions of the equation

    Substitute x = - 1 and y = - 1 into the equation and solve for k

    9k ( - 1) + 12k ( - 1) = 63, that is

    - 9k - 12k = 63

    - 21k = 63 (divide both sides by - 21)

    k = - 3
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Find the value of k so that x = - 1 and y = -1 is a solution of the linear equation 9kx + 12ky = 63 ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers