1. 12a - 7
2. 3x² + 2x
3. 10c - 11bc
4. 2x
5. 5y³ + 13y
6. 2c³
7. 14c + 17x - 8c + 12x = 6c + 29x
8. (15x - 14y - 13а) - (- 11х + 12y - 13а) = 15x - 14y - 13a + 11x - 12y + 13a = 26x - 26y
9. (5x - 6) + (b – 5х) = 5x - 6 + b - 5x = b - 6
10. (20c + 7x) + (2x – 8c). = 20c + 7x + 2x - 8c = 12c + 9x
1. 12a - 7
2. 3x² + 2x
3. 10c - 11bc
4. 2x
5. 5y³ + 13y
6. 2c³
7. 14c + 17x - 8c + 12x = 6c + 29x
8. (15x - 14y - 13а) - (- 11х + 12y - 13а) = 15x - 14y - 13a + 11x - 12y + 13a = 26x - 26y
9. (5x - 6) + (b – 5х) = 5x - 6 + b - 5x = b - 6
10. (20c + 7x) + (2x – 8c). = 20c + 7x + 2x - 8c = 12c + 9x