Question

Can someone help me understand what I did wrong?

What is the solution set for |2x – 3| = 13?

2x-3=13
+3 +3
2x=16
16/2=8
x=8

2x+3=13
-3 -3
2x=10
10/2=5
x=5

Answer 1

it should be 2x-3 = 13 or 2x - 3 = -13

Answer 2

not 2x+3 = 13

Answer 3

the 1st solution is correct...

the 2nd solution has an incorrect sign

its

2x +3 = -13

Answer 4

Ooooh!! I see it now, thanks a looooot!!! :DD So now the answer is

8 or -8!

Thanks a lot you two! c: xD

Answer 5

no, one of those answers you got just now is wrong

Answer 6

no its 8 and

2x - 3 = -13

add 3

2x = -10

Answer 7

Dang it, it's -5 or 8 then.. Dx

Answer 8

yep, -5 or 8 is correct

Answer 9

Finally, thank you very much. c:

Answer 10

I recommend checking any/all answers you get

Answer 11

so if you checked x = -8 (one wrong solution, but we'll check it anyway), then you would have gotten

|2x – 3| = 13

|2*(-8) – 3| = 13 ... plug in x = -8

|-16 – 3| = 13

|-19| = 13

19 = 13 ... which is FALSE

so x = -8 is NOT a solution

Answer 12

Now you're just confusing me, like... It's the answer isn't it?

Answer 13

I'm showing you a way to check for potential answers

Answer 14

if I claim x = -8 is an answer, you can use this check method to disprove my claim

Answer 15

;~; Oh, ok... Thank you.

Answer 16

np