3 (1-2х)-5 (3-х)-6 (3х-4)=83

Question

3 (1-2х)-5 (3-х)-6 (3х-4)=83

Answer 1

Раскрываем скобки.
Получаем:
3 - 6x - 15 + 5x - 18x + 24 = 83
-19x = 83 -3 + 15 - 24
-19x = 71
x = - 71/19