5(х + 3) - 22 = 38
5х + 15 - 22 = 38
5х = 38 + 22 - 15
5х = 45
х = 45 : 5
х = 9.
Проверка :
5(9 + 3) - 22 = 38
45 + 15 - 22 = 38
38 = 38.
5(х + 3) - 22 = 38
5х + 15 - 22 = 38
5х = 38 + 22 - 15
5х = 45
х = 45 : 5
х = 9.
Проверка :
5(9 + 3) - 22 = 38
45 + 15 - 22 = 38
38 = 38.