Question

[ 3 . x - 6 ] . 3 = 3⁴

Answer 1

(3.x-6) .3 =3⁴

=>3.x-6=3⁴:3

=>3.x-6=3³

=>3.x-6=27

=>3.x=27+6

=>3.x=33

=>x=33:3

=>x=11

Answer 2

(3x - 6) . 3 = 3⁴

=> 3x - 6 = 3⁴ : 3 = 3³ = 27

=> 3x = 27 + 6 = 33

=> x = 11

Answer 3

[ 3.x-6].3=3⁴

[3x-6].3=81

3x-6=81:3

3x-6=27

3x=27+6

3x=33

x=33:3

x=11

Vậy x=11