Question

x+x-4+x+3=71 реши уравнение

Answer 1

x+x-4+x+3=71
3x = 71 + 4 - 3 
3x = 72
x = 72 / 3
x = 24

Проверка : 
24 + 24 - 4 + 24 + 3 = 71

Ответ : x = 24