18. Реши уравнения. x-12=0 25+ x = 25 x: 108 = 1 y: 1=37 x15=0 x 18 = 18

Решаем уравнения:

1. x - 12 = 0

   x = 12

2. 25 + x = 25

   x = 25 - 25

   x = 0

3. x : 108 = 1

   x = 108

4. y : 1 = 37

   y = 37

5. x \( \cdot \) 15 = 0

   x = 0

6. x \( \cdot \) 18 = 18

   x = 1

Ответ: x = 12, x = 0, x = 108, y = 37, x = 0, x = 1