Question

Решите уравнение: log3(7x-1)=3

Answer 1

Log3(7x-1)=Log3 27
7x-1=27
7x=28;
x=4 ОДЗ:7х-1>0;х>1/7

Answer 2

7*x - 1 = 27
7*x = 28
x=4