Question

Помогите срочно!!!!!!
2×(х-40)=60

Answer 1

2(х-40)=60
2х-80=60
2х=60+80=140
х=140/2
х=70
Ответ х=70

Answer 2

2•(х-40)=60
2х-80=60
2х=60+80
2х=140
х=140:2
х=70