Question

Simplify n - {1 - [n - (1 - n) - 1]}.
n - 1
-n - 1
3n - 3
-3n + 3

Answer 1

Answer: the correct answer is 3n-3

Answer 2

n - {1 - [n - (1 - n) - 1]} first you do - (1 - n) [multiply -1 to 1 - n)

n - {1 - [n - 1 + n - 1]}

n - {1 - [n + n - 1 - 1]}

n - {1 - [2n - 2]} you do - (2n - 2) [multiply -1 to 2n - 2)

n - {1 -2n + 2}

n - {-2n + 3} you do - (-2n + 3) [multiply -1 to -2n + 3)

n + 2n - 3

3n - 3
answer