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How do you add or subtract #(4x)/9 + (x -10)/9#?

Answer 1

Avery Alexander

Add the numerators as the denominator are the same and then remove any common factors.

# 4x/9 + (x-10)/9 = (4x + 1x -10)/9#

Combining the x terms gives

# (5x -10)/9#

A factor of 5 can be removed from both terms in the numerator

#{ 5 ( x -2)}/9#

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Answer 2

Savannah Anderson

To add or subtract fractions with the same denominator, you simply add or subtract the numerators and keep the denominator the same.

In this case, the denominators are both 9.

So, to add (4x)/9 + (x - 10)/9, you add the numerators (4x + x - 10) and keep the denominator as 9.

Simplifying the numerator gives you (5x - 10).

Therefore, the sum is (5x - 10)/9.

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Answer from HIX Tutor

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.