Question

15 x - 10 x + 7 = 27.

Answer 1

Ответ:

15х - 10х +7 = 27

15х - 10х = 27 - 7

5х = 20

х = 20 : 5

х = 4

проверка

15*4 - 10*4 +7 = 27

60 - 40 +7 = 27

27 = 27

Пошаговое объяснение:

Answer 2

15x - 10x + 7 = 27

5x + 7 = 27

5x = 27-7

5x = 20

x = 4