InterviewSolution
Saved Bookmarks
| 1. |
Subtract x – 2y – z from the sum of 3x – y + z and x + y – 3z. |
|
Answer» (3x – y + z) + (x + y – 3 z) – (x – 2y – z) = 3x – y + z + x + y – 3z – x + 2y + z = 3x + x – x – y + y + 2y + z + z – 3z = 3x + 2y – z |
|