How do I solve: |2x + 5 | - 9 = 12

Question

anonymous · Answer

|2x + 5 | - 9 = 12


|2x+5| = 12+9

|2x+5| = 21

since it is an absolute value you have to have two answers for x


2x+5 = 21

2x = 21-5

2x = 16

x = 8


AND 

2x+5 = -21

2x = -26

x = -26/2

x = -13

terenzreignz · Answer

too bad this is no longer my favourite kind of absolute value equation... oh well...
make it so that the absolute value part is alone on one side of the equation.

johnweldon1993 · Answer

you're going to have 2 answers....add 9 to both sides...then you'll have

2x + 5 = 21
and
2x + 5 = -21

johnweldon1993 · Answer

@terenzreignz what's your favorite now? lol

terenzreignz · Answer

This http://openstudy.com/study#/updates/51430325e4b04cdfc581822d

johnweldon1993 · Answer

lol ahh so ones that confuse everyone haha....i remember when i first looked at one of those and just had the blankest exression until i realized...hmm..it's impossible lol

terenzreignz · Answer

Confuses for a bit, but then again, if all your questions were like that, you'd do the test in less than minute... :D