Question

Which algebraic expression is equivalent to the expression below?

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(4n + 14) + (6 + 7n)
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A. 24n + 7

B. 10n + 21

C. 18n + 13

D. 11n + 20

Answer 1

D

Explanation:

Combine like terms 4n can only be added with 7n and 14 can only be added to 6

Answer 2

11n + 20

Explanation:

Because all of the signs are + , the parentheses can be removed.

Next, combine like terms:

4n + 14 + 6 + 7n = 11n + 20

None of the three given possible answers is correct.