Ask Question
24 March, 04:14

If x+y=15 and x-y=-19 then what does xy=?

+3
Answers (1)
  1. 24 March, 07:45
    0
    xy=34

    Step-by-step explanation:

    Use elimination:

    x+y=15

    x-y+-19

    2x=-4

    x=-2

    Plug - 2 into x

    -2+y=15

    y=17

    17 multiplied by - 2 is 34

    I dont know if you mean (x, y) or not but the answer to that would be (-2, 17).
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “If x+y=15 and x-y=-19 then what does xy=? ...” 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