Question

9^ 5+2х= 0.81*10^5+2 х

Answer 1

9^5*9^2x=(9^2*10^5*10^2x)/10^2
(9/10)^2x=(9^2*10^3)/9^5
(0.9)^2x=(0.9)^(-3)
2x=-3
x=-1.5