Solution
for this case we can do the following:
[tex]|2x+6|-3=13[/tex]We can add 3 in both sides and we got:
[tex]|2x+6|=16[/tex]then we have two alternatives:
1)
2x +6= -16
2x= -22
x= -11
2)
2x+6= 16
2x =10
x= 5
then the two solutions are:
x= -11 and x= 5