InterviewSolution
Saved Bookmarks
| 1. |
Choose the correct one. Which of the following equations cannot be formed using the equation x = 7 ? (a) 2x + 1 =15 (b) 7x – 1 = 50 (c) x – 3 = 4 (d) x/7 – 1 = 0 |
|
Answer» Correct option is (b) 7x - 1 = 50 We have, x = 7 On multiplying both the sides by 7, we get 7×x=7×7 7x = 49 On adding (-1) both the sides, we get 7x + (-1) = 49 + (-1) 7x - 1= 49 - 1 7x - 1 = 48 Correct answer is (b) 7x – 1 = 50 |
|