49.7k views
14 votes
What is the solution to the system of equations?
2x+y=- 4
X-y=4

User Vgel
by
7.2k points

1 Answer

8 votes

Answer:

x = 0, y = -4

Explanation:

Add these equations together:


2x + y = -4\\x - y = 4

3x = 0

divide both sides by 3

x = 0

substitute this into the equation x - y = 4

0 - y = 4

y = -4

User Emer
by
7.1k points