Which expression is not equivalent to 8 + (n - 4)?

1. n + 4

2. (8 - 4) + n

3. (8 + n) - 4

4. 12 + n

Question

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fmar4872 fmar4872 · Answer 1 · 2021-01-13T18:05:25+01:00

Answer:

D. 12 + n

Step-by-step explanation:

To solve this question we have to simplify each equation 1 by 1 :

First, let us do the equation in the problem:

8 + (n - 4) = n +4

Now let us review the answers:

A. Is equivalent because 8 + (n - 4) = n + 4

B. Is equivalent because (8 - 4) + n = n + 4

C. Is equivalent because (8 + n) - 4 = n + 4

and D. is not equivalent because obviously 12 + n does not equal n + 4

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