Ask Question
17 November, 20:34

A system of linear equations is shown below. 2x + 4y = 10 3x - y = 8 marla is attempting to prove that by replacing 2x + 4y = 10 with a different equation it will sometimes produce a new system of equations with the same solution. marla plans on multiplying 2x + 4y = 10 by 2 and then adding the results to the equation 3x - y = 8 in order to create a new equation. marla claims that the new equation that she will replace 2x + 4y = 10 with is 7x + 7y = 12. is marla correct?

+3
Answers (1)
  1. 17 November, 20:40
    0
    2 (2x + 4y) + (3x - y) = 2 (10) + (8)

    ... 7x + 7y = 28

    Marla has incorrectly calculated the constant as 12. It should be 28.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “A system of linear equations is shown below. 2x + 4y = 10 3x - y = 8 marla is attempting to prove that by replacing 2x + 4y = 10 with a ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers