Solve the following equations in the column B.

Решение:

B

1. \( a : 10 = 100 \) \( \Rightarrow \) \( a = 100 \cdot 10 = 1000 \)
2. \( x \cdot 4 = 60 \) \( \Rightarrow \) \( x = 60 : 4 = 15 \)
3. \( 6 \cdot b = 72 \) \( \Rightarrow \) \( b = 72 : 6 = 12 \)
4. \( 70 : c = 5 \) \( \Rightarrow \) \( c = 70 : 5 = 14 \)
5. \( 12 \cdot x = 84 \) \( \Rightarrow \) \( x = 84 : 12 = 7 \)
6. \( b : 12 = 3 \) \( \Rightarrow \) \( b = 3 \cdot 12 = 36 \)
7. \( a \cdot 13 = 39 \) \( \Rightarrow \) \( a = 39 : 13 = 3 \)
8. \( 5 \cdot y = 65 \) \( \Rightarrow \) \( y = 65 : 5 = 13 \)
9. \( b \cdot 3 = 42 \) \( \Rightarrow \) \( b = 42 : 3 = 14 \)
10. \( c : 5 = 12 \) \( \Rightarrow \) \( c = 12 \cdot 5 = 60 \)
11. \( 5 \cdot c = 85 \) \( \Rightarrow \) \( c = 85 : 5 = 17 \)
12. \( 91 : a = 13 \) \( \Rightarrow \) \( a = 91 : 13 = 7 \)
13. \( y \cdot 4 = 52 \) \( \Rightarrow \) \( y = 52 : 4 = 13 \)
14. \( 37 : y = 37 \) \( \Rightarrow \) \( y = 37 : 37 = 1 \)
15. \( x : 4 = 13 \) \( \Rightarrow \) \( x = 13 \cdot 4 = 52 \)
16. \( 4 \cdot a = 72 \) \( \Rightarrow \) \( a = 72 : 4 = 18 \)
17. \( c \cdot 6 = 90 \) \( \Rightarrow \) \( c = 90 : 6 = 15 \)
18. \( y : 8 = 12 \) \( \Rightarrow \) \( y = 12 \cdot 8 = 96 \)
19. \( 3 \cdot b = 57 \) \( \Rightarrow \) \( b = 57 : 3 = 19 \)
20. \( 98 : x = 7 \) \( \Rightarrow \) \( x = 98 : 7 = 14 \)
21. \( 63 : x = 21 \) \( \Rightarrow \) \( x = 63 : 21 = 3 \)
22. \( a \cdot 54 = 0 \) \( \Rightarrow \) \( a = 0 : 54 = 0 \)
23. \( 78 : b = 6 \) \( \Rightarrow \) \( b = 78 : 6 = 13 \)
24. \( x : 6 = 16 \) \( \Rightarrow \) \( x = 16 \cdot 6 = 96 \)

Ответ: a = 1000, x = 15, b = 12, c = 14, x = 7, b = 36, a = 3, y = 13, b = 14, c = 60, c = 17, a = 7, y = 13, y = 1, x = 52, a = 18, c = 15, y = 96, b = 19, x = 14, x = 3, a = 0, b = 13, x = 96.