Question

HELP!!!!
Is the first one correct?
I don’t know how to do the other ones

Answer 1

Explanation:

All you simply have to do is plug in the variables in the correct space, meaning (x,y)

1. (-2,-7)

5x - y = -3

x + 3y = -23

5(-2)-(-7) = -3

-3=-3, this is a solution

-2 + 3(-7) = -23

-23=-23, this is a solution

just continue and do the same for the others!!