Question

Solve the linear system using elimination.
10) x - y = - 4
x + 3y = 4
I just want to know if this answer is correct. ^.^
The answer I got ----> (4, 0) or x = 4, y = 0

Answer 1

Here's how you check:

Plug your solution into all of the equations and see if they are all true.

\[4-0=-4\]\[4+3(0) = 4\]Looks like only one of those is true, so you do not have the correct solution.

Answer 2

If you post your work, I'll point out where you went wrong...