Question

1/ 9x + 2 x 3³ = 3⁴

Answer 1

\(\frac{x+486}{9}=\frac{81}{1}\Rightarrow\left(x+486\right)1=9.81\)

\(\frac{\left(x+486\right)1}{x}=\frac{9.81}{x}\)

\(\frac{x+486}{x}=\frac{9.81}{x}\)

\(\Rightarrow x=243\)

Answer 2

9x + 54 = 81

=> 9x = 81 - 54 = 27

=> x = 7