Question

Помогите пж номер 1604 дам 18 баллов

Answer 1

13х-12х-23=22
х-23=22
х=22+23
х=45
25х-24х+49=58
х+49=58
х=58-49
х=9
9у+2у-10у+17=91,6
у=91,6-17
у=74,6
17у-4у-12у-17=18
у=18+17
у=35

Answer 2

$13x - 12x - 23 = 22 \ 13x - 12x = 22 + 23 \ x = 45$
$25x - 24x + 49 = 58 \ 25x - 24x = 58 - 49 \ x = 9$
$9y + 2y - 10y + 17 = 91.6 \ 9y + 2y - 10y = 91.6 - 17 \ y = 74.6$
$17y - 4y - 12y - 17 = 18 \ 17y - 4y - 12y = 18 + 17 \ y = 35$