1344 : (х + 26) = 32
х + 26 = 1344 : 32
х + 26 = 42
х = 42 - 26
х = 16
----------------------
Проверка: 1344 : (16 + 26) = 32
1344 : 42 = 32
32 = 32
384 : (51 - 5х) = 24
51 - 5х = 384 : 24
51 - 5х = 16
5х = 51 - 16
5х = 35
х = 35 : 5
х = 7
----------------------
Проверка: 384 : (51 - 5 * 7) = 24
384 : (51 - 35) = 24
384 : 16 = 24
24 = 24