Ask Question
14 September, 06:14

Solve the following system of equations. With multiplication

4x - 3y = - 11

- 7x-8y = 6

+4
Answers (1)
  1. 14 September, 09:58
    0
    4x - 3y = - 11

    -7x - 8y = 6

    We need to cancel out one of the variables so let's multiply the first equation by 8 and the second by 3 and aim to cancel y.

    32x - 24y = - 88

    -21x - 24y = 18

    Now we subtract,

    53x = - 106

    x = - 2

    3y = 4x + 11 = 4 (-2) + 11 = 3

    y = 1

    Answer: (x, y) = (-2,1)

    Check:

    4 (-2) - 3 (1) = - 8 - 3 = - 11, good

    -7 (-2) - 8 (1) = 14 - 8 = 6, good
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Solve the following system of equations. With multiplication 4x - 3y = - 11 - 7x-8y = 6 ...” 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