Помогите с уравнением 988:(7x-18)+2=28
988 : (7х-18) + 2 =28
988 : (7х-18) = 26
(7х-18) = 988 :26
7х-18 = 38
7х = 38 + 18
7х = 56
х = 8
988:(7х-18)+2=28; 988:(7х-18)=28-2; 988:(7х-18)=26; 7х-18=988:26; 7х-18=38; 7х=38+18; 7х=56; х=8