Question

3^6x+5 : 3^3x-2 =81 помогите пж

Answer 1

$3 \times 6x + 5 \div 3 \times 3x - 2 = 81 \\ 18x + \frac{5}{3} \times 3x - 2 = 81 \\ 18x + 5 - 2 = 81 \\ 23x - 2 = 81 \\ 23x = 81 + 2 \\ 23x = 83 \\ x = \frac{83}{23} \\ x = 3 \frac{14}{23}$