2х-4=22 (48/2)/х=6 18х+40=94 (12+2х)+14*2=44 28-2х=2 - вопрос №581537324224826184094122142442822 от guka070806 26.11.2021 20:41

Question

Математика: 2х-4=22 (48/2)/х=6 18х+40=94 (12+2х)+14*2=44 28-2х=2 решите

guka070806 · Answer

2х - 4 = 22; 2х = 22 + 4; 2х = 26; х = 26 : 2; х = 13 (48/2) / Х = 6; 24 : х = 6; х = 24 : 6; х = 4
18х + 40 = 94; 18х = 94 - 40; 18х = 54; х = 54 : 18; Х = 3
(12 + 2х) + 14 * 2 = 44; 12 + 2х + 28 = 44; 2х = 44 - 12 - 28; 2х = 4; х = 2
28 - 2х = 2; 2х = 28 - 2; 2х = 26; х = 26 : 2; х = 13