2|x+4|=8
Let's solve in ℝ: 2·|x + 4| = 8
You can factorize this expression into: 2·(|x + 4| -4) = 0
Let's solve: |x + 4| -4 = 0
|A| = B is equivalent to: A = B or A = -B
Let's solve in ℝ: x + 4 = 4
x = 4 -4
Solution obtained: x = 0
Let's solve in ℝ: x + 4 = -4
x = -4 -4
Solution obtained: x = -8
▶Solution:   x = { -8, 0 }