Ask Question
5 March, 10:14

X + y = - 7

-x + 4y = 17

whats is x and y

+2
Answers (2)
  1. 5 March, 11:48
    0
    X+y=-7

    y = - 7-x

    -x+4 (-7-x) = 17

    -x-28-4x = 17

    -5x-28=17

    -5x=17+28

    -5x=45

    x = - 9

    y = - 7 - (-9)

    y = - 7+9

    y=2
  2. 5 March, 12:20
    0
    Answer:X=-9

    Y=2

    Step-by-step explanation:

    X+y=-7

    -X+4Y=17

    X=-7-y

    -X+4Y=17

    X=-7-Y

    - (-7-Y) + 4Y=17

    X=-7-Y

    7+Y+4Y=17

    5Y+7=17

    5Y=17-7

    5Y=10

    Y=10:5

    Y=2

    So,

    X=-7-Y

    X=-7-2

    X=-9
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “X + y = - 7 -x + 4y = 17 whats is x and y ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers