I couldn’t see the whole picture so I’m not sure if I could really help I’m sorry maybe next time
Answer:
a = 10
Step-by-step explanation:
From the solution given, x = a and y = -1
Substitute for x and y in either of the equations
y = -x + 9
-1 = -a + 9
a = 9 + 1 = 10
5 more than a square number would be 21 which is 5 more than 16 (the square of 4)
