Question

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

n +4
(8 + n) - 4
12 + n
(8-4) +n

Answer 1

12+n

Explanation:

8+n-4 = n+4

n+4 = n+4 (Can not be simplified).

(8+n)-4 = n+4

12+n = 12+n (Can not be simplified).

(8-4)+n = n+4

So the answer would be 12+n because it does not equal n+4.