5y+ 7y-12/3 = y+13 помогите плиз
5y + 7 y - 12/3 - y - 13 = 0 11y - 12/3 - 13 = 0 11 y = 12/3 + 13 11y = 12/3 + 39/3 11y = 51/3 11y = 17 y = 17/11