Question

solve this question on notebook please i need help

Answer 1

Answer:

(81)^5/x = 243

(3)^4*5/x = 3^5

20/x=5

=5x=20

x=20/5

x=4

Answer 2

Answer:

81^5/x=243

taking log on both side we get

5/xlog81=log243

5/xlog3⁴= log3^5

5×4/xlog3= 5log3

eliminate log we get

20/x=5

x=4