Ответ:

1) 482

2) 1057

3) 101

4) 2508

5) 60

6) 32

Пошаговое объяснение:

1) 524 + x = 1024

x = 1024 - 542

x = 482

2) x - 126 = 931

x = 931 + 126

x = 1057

3) 24 × x = 2424

x = 2424 : 24

x = 101

4) 22572 : x = 9

x = 22572 : 9

x = 2508

5) x + 3x = 240

4x = 240

x = 240 : 4

x = 60

6) 7 + x + 23x = 775

24x = 775 - 7

x = 768 : 24

x = 32