Question

2х+4х+18=90 пжпжпжпжпппж

Answer 1

Ответ:

$2x + 4x + 18 = 90 \\ 6x + 18 = 90 \\ 6x = 90 = 18 \\ 6x = 72 \\ x = 12$

Answer 2

Ответ:

2х+4х+18=90

6х+18=90

6х=90-18

6х=72

Х=72:6

Х=12