Решите уравнение: 4,5х-7=(8-12х):3
3*(4,5х-7)=8-12х 13,5х-21=8-12х 13,5х+12х=8+21 25,5х=29 х=29:25,5 х=290/255 х=1 7/11
4,5x - 7 = (8-12x) ÷ 3 4,5x - 7 = 8 ÷ 3 - 12x ÷ 3 4,5x - 7 = - 4x 9,5x = + 7 9,5x = + 7 x = x = ÷ x = ÷ x = × x = Ответ: