6 (х+5)+2х помогите плчс
a chremu jeto uravnenie ravno.?
...ne ochen' jasno sformulirovan vopros!
6(x+5)+2x = 6x + 30 + 2x = 8x + 30
6(х+5)+2х=0 6х+30+2х=0 8х=30 х=3.75