Ask Question
4 September, 17:23

3) 5x+4y=-30

3x - 9y=-18

+4
Answers (1)
  1. 4 September, 19:54
    0
    Step-by-step explanation:

    5x+4y=-30 ... (1)

    3x - 9y=-18 ... (2)

    divid (2) by : 3

    x - 3y = - 6 so x = 3y - 6 ... (*)

    put this value for x in (1) : 5 (3y - 6) + 4y = - 30

    15y - 30 + 4y = - 30

    19y = 0 so : y = 0 put this value in (*) : x = 3 (0) - 6 ... x = - 6
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “3) 5x+4y=-30 3x - 9y=-18 ...” 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