Question

решите уравнение x/9(дробь)=81

Answer 1

x/9=81; x=81*9; x=729.Ответ: x=729.

Answer 2

$\frac{x}{9} = 81 \\ x = 81 \times 9 \\ x = 729 \\ \frac{729}{9} = 81 \\ 81 = 81$