Three equations in x, y, z Quiz: answer key
Every answer, with a link to its step-by-step solution
| # | Answer | Level | Solution |
|---|---|---|---|
| 1 | (x, y, z) = (1, 2, 3) | Easy | Solved step by step |
| 2 | (x, y, z) = (5, 1, 4) | Easy | Solved step by step |
| 3 | (x, y, z) = (1, 1, −1) | Easy | Solved step by step |
| 4 | (x, y, z) = (2, −2, 1) | Easy | Solved step by step |
| 5 | (x, y, z) = (2, −2, 1) | Medium | Solved step by step |
| 6 | (x, y, z) = (4, 5, −1) | Medium | Solved step by step |
| 7 | (x, y, z) = (4, 2, −3) | Medium | Solved step by step |
| 8 | (x, y, z) = (2, −1, 3) | Medium | Solved step by step |
| 9 | (x, y, z) = (5, −1, 2) | Harder | Solved step by step |
| 10 | (x, y, z) = (0, 2, 4) | Harder | Solved step by step |
Grade
Count your right answers and divide by the number of questions: A 90% or more, B 80%, C 70%, D 60%, F below 60%.