Theory
Exercises
1. 
Choose the correct answer for linear equations in three variables
Difficulty: easy 
3

2. 
Identify the consistency and inconsistency of linear equation in three variables
Difficulty: easy 
3

3. 
Solve the equation for three variables
Difficulty: medium 
6

4. 
Determine the number of clothes
Difficulty: medium 
6

5. 
Calculate the cost of a notepad, a book and a pen
Difficulty: medium 
6

6. 
Find the numbers
Difficulty: medium 
6

7. 
Calculate the food eaten by a hen, a cow and a goat
Difficulty: hard 
6

8. 
Find the length, breadth and height
Difficulty: hard 
6

Tests
1. 
Training test I
Difficulty: medium 
10

2. 
Training test II
Difficulty: medium 
15
