Question

Log1/9 (9-x) = -2
Помогите пожалуйста!

Answer 1

log_(1/9) (9 - x) = - 2
9 - x = (1/9)^(-2)
9 - x = 9²
9 - x = 81
 x = 9 - 81
x = - 72

Answer 2

$log_frac{1}{9}(9-x)=-2\9-x=81\x=-72$