Question

What is the solution set for |–4x – 8| = 4?

x = 3 and x = 1

x = 3 and x = –1

x = –3 and x = 1

x = –3 and x = –1

Answer 1

I think its C

Answer 2

Ok let us see..

Answer 3

yaw two or three opinions are needed

Answer 4

|a| = b
a = b or a = -b

Answer 5

explain it not give the answer yet

Answer 6

It's a method, not the answer...

Answer 7

\[ |–4x – 8| = 4 \rightarrow –4x – 8 = \pm4 \rightarrow –4x = \pm4 +8\]
–4x = 4 +8 or –4x = -4 +8
-4x= 12 or -4x=4
x=12/(-4) or x= 4/(-4)
x=3 or x=-1
Thus second option appears to be true

Answer 8

yup i thin so too

Answer 9

Okay well im not sure if this is the right way to do it but
-4x-8=4
+8 +8
-4x=12
divide by 4 divide by 4
x=3 0r 1

Answer 10

yess i feel stupid -_- lol

Answer 11

Hmm these are the answers im coming up with :[
\[\large -4x-8=4 \qquad\to\qquad x=-3\]\[\large -4x-8=-4 \qquad\to\qquad x=-1\]

Answer 12

In your last step there, diving by 4 gives you\[-4x=12 \qquad\to\qquad -x=3\]

Answer 13

dividing*

Answer 14

So how do i solve these correctly how @dpasingh did it ?

Answer 15

He did it incorrectly I'm afraid. :[\[\Large -4x-8=4\]Adding 8 to each side,\[\Large -4x=12\]dividing each side by -4,\[\Large x=-3\]

The other solution,\[\Large -4x-8=-4\]Adding 8 to each side,\[\Large -4x=4\]Dividing each side by -4,\[\Large x=-1\]

Answer 16

so i was kinda right ? lol

Answer 17

With your C guess? :) lol
Yah I guess so, you had one of the solutions correct at least ^^ hehe

Answer 18

Err your last guess, where you showed the work ~ looks good, just don't forget about those negatives when you divide :)

Answer 19

Okay lol thank you so much :)