Найдите корень уравнения lg(7x+2)=2 - №23109069

Найдите корень уравнения lg(7x+2)=2
- Предмет:
  Алгебра
- Автор:
  hillary
- 5 лет назад

Ответы 1

Ответ: lg(7x+2)=2; lg(7x+2)=lg 100. И по теореме lg исчезают. 7x+2=100; 7x=98; x=14.
- Автор:
  copperdavidson
- 5 лет назад
- 0
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