Discussion
If − x − 2 = −|−(6 − 2)|, then x =
*This question is included in Nova Math - Problem Set F: Number Theory, question #17
| (A) | −5 |
| (B) | ... |
| (C) | ... |
| (D) | ... |
| (E) | ... |
| (F) | ... |
The solution is
Posted: 05/29/2012 14:49
How does -[-4] = -[+4]?
Posted: 05/29/2012 14:54
Tori, the problem talks about the absolute value sign |...|, not just a bracket that happens to be square [...]. Absolute value makes everything inside it positive.
So, |-4| = 4.
So, |-4| = 4.