Question

54,4-(2х-3,86)=40,26
​

Answer 1

56,4 - (2х - 3,86) = 40,26

56,4-2х+3,86=40,26

2х=56,4+3,86-40,26

2х=20

х=20:2

х=10

Answer 2

Ответ:

54,4-40,26=14,14

2x-3,86=14,14

2x= 18,26

x=9,13