9. (i) Find the exact value of \(x\) for which
$$\log _ { 3 } ( x + 5 ) - 4 = \log _ { 3 } ( 2 x - 1 )$$
(ii) Given that
$$3 ^ { y + 3 } \times 2 ^ { 1 - 2 y } = 108$$
show that
$$0.75 ^ { y } = 2$$
Hence find the value of \(y\), giving your answer to 3 decimal places.