Question

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

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

Answer 1

It would:

12+ n

because:

8+ (n - 4) = n + 4

n+ 4 = n+ 4

(8+n)-4 = n+ 4

12+ n = 12+n

(8-4) + n = 4+n

Answer 2

12 + n

Explanation:

8 + (-4) would be 4