Question

Пожалуйста, номер 604!!!

Answer 1

$4x - 27 = x \ 4x - x = 27 \ 3x = 27 \ x = 27/3 \ x = 9 \ \ \ 5x - 12 = x + 60 \ 5x - x = 60 + 12 \ 4x = 72 \ x = 72/4 \ x = 18$