There is on real number x for which |x+1| - |x-1| =
A. 4
B. 1
C. 0
D. -2
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I don't get this question at all. These few questions are the only ones I need help with since I don't get it at all.
I don't get it either. What comes after the equal sign?
To find the answer to this question, we can follow a step-by-step approach:
First, let's simplify the expression |x+1| - |x-1|:
|x+1| - |x-1| = (x+1) - (x-1)
Next, let's simplify further:
= x + 1 - x + 1
Notice that the x terms cancel out and we are left with:
= 2
So, the expression simplifies to 2.
Now, we can compare the result (2) with the answer choices given:
A. 4
B. 1
C. 0
D. -2
We can see that none of the answer choices match the result of 2. Therefore, the correct answer is none of the above.