Ask Question
17 October, 12:16

What is X+y=-1

X-y=7

+2
Answers (1)
  1. 17 October, 16:02
    0
    Step-by-step explanation:

    X+y=-1

    X-y=7

    Ys are additive inverse's.

    X+x+y-y=7-1

    2x=6

    X=3

    Plug x=3 into x+y=-1

    3+y=-1

    -3 both sides

    Y=-4
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “What is X+y=-1 X-y=7 ...” 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