Question

[6 - 6n] = 12. What is n?

Answer 1

is this absolute value?

Answer 2

if so, solve
\[6-6n=12\] and \[6-6n=-12\] to get your two solutions

Answer 3

{6-6n} = 12
6-6n =12
-6 -6
-6n = 6
/-6 /-6
n = -1