| 1) | 2x + 6 = -21 | 2) | 2x -2 = 10 |
| 3) | 4x + 2 = -18 | 4) | 4x + 1 = -16 |
| 5) | 2x + 7 = 15 | 6) | 3x + 4 = 20 |
| 7) | 4x + 7 = 20 | 8) | 4x -5 = -16 |
| 9) | 3x -2 = 8 | 10) | 2x + 5 = 18 |
| 11) | 2x + 3 = 17 | 12) | 3x + 8 = 24 |
| 13) | 4x -5 = 6 | 14) | 2x -2 = -22 |
| 15) | 4x + 1 = -20 | 16) | 2x + 5 = -18 |
| 17) | 3x + 2 = -22 | 18) | 4x + 7 = 5 |
| 19) | 3x + 8 = -16 | 20) | 2x + 6 = 9 |
| 21) | 3x + 6 = 2 | 22) | 2x -2 = -24 |
| 23) | 3x + 4 = -19 | 24) | 2x -3 = -17 |
| 25) | 4x + 7 = 22 | 26) | 3x + 6 = -4 |
| 27) | 4x + 3 = -10 | 28) | 4x -5 = -23 |
| 29) | 3x + 1 = -18 | 30) | 2x -2 = 22 |
| 31) | 3x -3 = 22 | 32) | 3x + 6 = 8 |
| 33) | 4x + 3 = 24 | 34) | 3x + 8 = 11 |
| 35) | 2x -2 = 24 | 36) | 3x -3 = -12 |
| 37) | 2x + 2 = 0 | 38) | 2x -3 = 8 |
| 39) | 4x + 2 = -13 | 40) | 2x -2 = 6 |
Joke:
What happens when a mathematician collects too many Ph.D's? - Permanent Head Damage!