Tìm x, biết: (a) 1 /4 x − 1 /3 = − 5 /9

Tìm x, biết:

(a) \(\frac{1}{4}x - \frac{1}{3} = - \frac{5}{9}\)

(b) \({2^{x - 3}} - {3.2^x} = - 92\).