Answer:
ima guess x+y=123
x-y=7
2x + 123 - 35
I could wrong, but I'm pretty sure this is correct
answer D ( if i interpreted your question correctly )
Step-by-step explanation:
Sqrt (c^2) = √(c^2) = C
5n + 5 = 45
Coefficient of n = 5
Constant = 5 & 45
I think you are correct actually.