How do you solve 9/2^-1? explain. i need the exponent to be positive. the answer is 18 but idk why

9*2^1=18

switch both signs to keep equilibrium

2

correct answer is infinitely many solutions

step-by-step explanation:

2(2x + 3) = -4 + 2(2x + 5)

solving the above equation:

4x + 6 = -4 +4x +10

combining like terms

4x -4x = -4+10-6

0=0

since both sides are 0=0, we end up into true statement it means it has infinite many solutions.

so correct answer is infinitely many solutions