Answer:
[tex]B. \: \frac{8}{3} [/tex]
Step-by-step explanation:
[tex]{2}^{7} = {8}^{5 - x} \\ {2}^{7} = {2}^{3(5 - x)} \\ {2}^{7} = {2}^{15 -3 x} \\ .......since \: the \: bases \: are \: the \: same, \: then \: equate \: thier \:powers \\ \\ 7 = 15 - 3x \\ 3x = 15 - 7 \\ x = \frac{8}{3} .[/tex]
hi!!
option B, 8/3 is the correct answer
hope it helps you❤
