решите уравнение (5/8 x - 2/3)*48=28"

(5/8х - 2/3) * 48 = 28

5*48/8х - 2*48/3 = 28

30х - 32 = 28

30х = 28 + 32

30х = 60

х = 60 : 30

х = 2

Проверка: (5/8х * 2 - 2/3) * 48 = 28

                   10*48/8 - 2*48/3 = 28

                    60 - 32 = 28 - верно.