Question

2^(4x-19)=1/8
помогите решить

Answer 1

${2}^{4x - 19} = \frac{1}{8} \\ {2}^{4x - 19} = {2}^{ - 3} \\ 4x - 19 = - 3 \\ 4x = 16 \\ x = 4$

Answer 2

2*(4х -19)=1/8
8х -38=1/8
8х =1/8+38
8х =38 1/8
х =38 1/8:8
х =305/8:8
х =305