# How do you compute #-19-8#?

We can simplify the terms in the parenthesis to get:

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The answer is -27, see explanation for mini-lesson.

In order to find the answer to these types of problems, you must know how to keep the negative and positive signs straight.

Else the problem is completely messed up.

So, for the sake of keeping the signs in order, I will temporarily move both the negatives out to show how easy the problem is.

Simply, really.

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To compute -19 - 8, you subtract 8 from -19:

-19 - 8 = -27

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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