Answer:
None of these choices are correct
Step-by-step explanation:
Law of exponents
3^(x+5) = 9^(-1)
3^(x+5) = (3²)^(-1)
3^(x+5) = 3^(-2)
Same base, same power or exponents
x+5 = -2
x = -2 -5
x = -7
