bantu jawab dengan cara kerjanya yah

27/3^2x-1 = 81^-0,125
3^3/3^2x-1 = 81^-1/8
3^3-2x+1=3^4(-1/8)
3^4-2x=3^-4/8
4-2x = -4/8
4-2x = -1/2
2x =4+1/2
2x = 9/2
x = 9/4
x = 2 1/4

semoga membantu :)