# How do you solve #2b + 5 = b + 7#?

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AS AN EXAMPLE.

The five from both sides would need to be subtracted, so...

After that, the zeros are eliminated, making:

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Subtract b from both sides to get b = 2.

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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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