Answer:
yes
Explanation:
x - y = 5 → (1)
2x + y = 1 → (2)
substitute (2, - 3 ), that is x = 2, y = - 3 into the left side of both equations and if the value obtained is equal to the right side in both then the ordered pair is a solution.
(1 ) 2 - (- 3) = 2 + 3 = 5 ← true
(2) 2(2) - 3 = 4 - 3 = 1 ← true
since both equations are true for (2, - 3 ) then it is a solution to the system.