Elsőfokú egyenletek gyakorló feladatsor

1. 2x + 5 = 13 (x = 4)
2. x - 7 = 9 (x = 16)
3. 3x = 21 (x = 7)
4. 5x - 4 = 11 (x = 3)
5. 4x + 8 = 0 (x = -2)
6. 2x - 3 = 7 (x = 5)
7. x + 12 = 4x (x = 4)
8. 6 - x = 2x (x = 2)
9. 7x + 2 = 16 (x = 2)
10. 10x = 50 (x = 5)
11. 3x + 5 = 2x + 11 (x = 6)
12. 8x - 4 = 2x + 8 (x = 2)
13. 2(x + 3) = 16 (x = 5)
14. 4(x - 2) = 12 (x = 5)
15. 5x + 3 = 3x + 11 (x = 4)
16. 7x - 9 = 5x + 1 (x = 5)
17. 9 - 2x = x + 3 (x = 2)
18. 2x + 7 = 3x - 5 (x = 12)
19. 6(x - 1) = 18 (x = 4)
20. 4x - 5 = 3x + 2 (x = 7)