(3,7)
7y+ 8x + 4= 20 + 8x- 8x - 8x7y + 4 = 20- 4 - 47y=16/7 /7y= 2.28the /7 means divide by 7 :)
The ordered pair is (1, 1).
The ordered pair is (1, 3).
(5,7)
The ordered pair is (5, 4).
The ordered pair is (-1, -2).
The ordered pair is (-1, -7).
(3,3)
(5,3)
It's an inconsistent pair of equations, for which there is no solution.
No real roots.
x = 2, y = 3