Some simplifications of algebraic expressions are done below. The expression on the right-hand side should be in its simplest form. Observe each of them and see if there is a mistake. If you think there is a mistake, try to explain what might have gone wrong. Then, simplify it correctly.
| S.No | Expression | Simplest form | Correct simplest form |
| 1 | \(5 + (x + 1)\) | \(5x - 5\) | |
| 2 | \(5(2w+3x+4r)\) | \(10w+15x+25r\) | |
| 3 | \(1j+2k+3h+4\) | \(1(j+2k+3h+4)\) |