# How do you combine #(3x)/10 + (9x)/10#?

As the denominators of the fractions are the same, we can add the numerators over the common denominator

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To combine (3x)/10 + (9x)/10, you can add the numerators (3x + 9x) and keep the common denominator of 10. This simplifies to (12x)/10, which can be further simplified to (6x)/5.

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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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