what are the step for this question

243*b^3=9     divide both sides by 243

b^3 =1 / 27     take the cube root of both sides

b =(1/27)^1/3

b = 1/3

243*b^3=9     divide both sides by 243

b^3 =1 / 27     take the cube root of both sides

b =(1/27)^1/3

b = 1/3