SOLUTION: I have a question about a symbol. It's an addition sign over a subtraction sign. What does that mean?? ~Thanks so much.

Question 67044: I have a question about a symbol. It's an addition sign over a subtraction sign. What does that mean??
~Thanks so much.
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
The symbol you are refering to is called..."plus or minus" and it's a way of showing that the quantity following the symbol can be either positive or negative. Here's an example:
This means that the value of x can be either:
or

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