Question

Show that (2, 1) is a solution of the system of equations. x + 3y = 5, y = –x + 3 Substitute (2, 1) into x + 3y = 5 to get . Simplify the equation to get . Substitute (2, 1) into y = –x + 3 to get . Simplify the equation to get .

Answer 1

1. D

2. A

3. A

4. A

Step-by-step explanation: Got it right on Edge 2021 :)

Answer 2

2 + 3(1) = 5

5 = 5 is true

1 = -(2) + 3

1 = 1 is true

Explanation:

I got them right on Edge 2020. Hope this helps