Question

| 1 + | 3 + x || -2 = 0

Answer 1

$displaystyle bigg|1+|3+x|bigg|-2=0\bigg|1+|3+x|bigg|=2\1+|3+x|=2; 1+|3+x|=-2\\\ |3+x|=1; |3+x|=-3\\|3+x|=1; |3+x|neq -3\\3+x=1; 3+x=-1\\x=-2;x=-4$

Answer 2

невернр

Answer 3

неверно

Answer 4

неверно значит неверно