12х-5(7-2х)=77 решите

Question

12х-5(7-2х)=77 решите

Answer 1

12x-35+10x=77
22x=77+35
22x=112
x=112/22
x=5,09

Answer 2

12х-5(7-2х)=77
12х-35+10х=77
12х+10х=77+35
22х=112
х=112:22
х=112/22
х=5.1/11
Ответ:5.1/11