Question

Solve the following system of equations by the substitution method.

x - y = 0
x - y - 2 = 0

What is the solution set?

{(1, -1)}
{(-1, 1)}
Ø

Answer 1

3

Answer 2

thanks:)

Answer 3

Alex, I've explained before, today, that it's against the rules to provide direct answers. I ask you firmly to stop doing that, and to stop now. Help the other person find his or her own answers. thank you. @AlexKross