2(x-2)-1=5(x-2)-7 помогите
2(x-2) - 1 = 5(x-2) - 7;
2x - 4 - 1 = 5x - 10 - 7;
2x - 5 = 5x - 17;
5x - 2x = 17 - 5;
3x = 12;
x = 12/3;
x = 4;
Оцени ответ
Вход
Регистрация
Задать вопрос
2(x-2) - 1 = 5(x-2) - 7;
2x - 4 - 1 = 5x - 10 - 7;
2x - 5 = 5x - 17;
5x - 2x = 17 - 5;
3x = 12;
x = 12/3;
x = 4;