Question

Is (9,9) a solution of the following linear

system of equations?:
17x - 9y=72
X - 9y = -72

Answer 1

Yes

(x,y)
(9,9)

17(9) - 9(9) = 72
153 - 81 = 72

(9) - 9(9) = -72
9 - 81 = -72