Question 144470
Replace and solve
5x-2y=9
(a) (7, )

5*7-2y=9
35-2y=9
-2y = -26
y = 13
(7,13)

(b) ( ,-7)
5x -2*(-7) = 9
5x + 14 = 9
5x = - 5
x = -1
(-1,-7)