Solve the absolute value equation? 2|n-4|-20=4

the answer is 2 4n 20

Remeember
if you have
|a|=b then solve for a that satisfiies a=b and a=-b

2|n-4|-20=4
add 20 to both sides
2|n-4|=24
divide both sides by 2
|n-4|=12
solve
n-4=12 and n-4=-12
add 4 to both sides
n=16 and n=-8

n=-8 and 16

The answer to your question is d 68%