97.5k views
10 votes
2x - y = 3
x = -2y - 1

User Morinar
by
3.5k points

1 Answer

11 votes

Answer:

x = 1, y = - 1

Explanation:

2x - y = 3

x = -2y - 1

2x - y = 3

2(-2y - 1) - y = 3

-4y - 2 - y = 3 {add 2 to both sides}

- 5y = 5 {divide both sides by (-5)}

y = -1

x = -2y - 1 = -2(-1) - 1 = 2 - 1 = 1

User Klatschen
by
3.2k points