Question

Show that (2,1) is a solution of the system of equations.

Answer 1

1. (2) + 3(1) = 5
2 = x
1 = y

2. 2 + 3 = 5.
5=5 <— Correct!

3. 2 = x
1 = y
(1) = -(2) + 3

4. 1 = -2 + 3
1=1 <— Correct!

Hope this helps!