Решение:
1) x - 7 = 9
x = 9 + 7
x = 16
2) x : 7 = 9
x = 9 * 7
x = 63
3) 32 - x = 32
x = 32 - 32
x = 0
4) 32 * x = 32
x = 32 : 32
x = 1
5) 62 + x = 62
x = 62 - 62
x = 0
6) 62 * x = 0
x = 0 : 62
x = 0
Ответ: 1) x = 16; 2) x = 63; 3) x = 0; 4) x = 1; 5) x = 0; 6) x = 0.