Question

|x+1|-4=-1
Can someone explain this to me? I got 2 and 4 for my answers but the correct answers are 2 and -4. I don't get it.

Answer 1

I x+1 I =3

Answer 2

so x+1=3 so x=2
and x+1=-3 so x= -4

Answer 3

do i have to rewrite it that way? i just removed the bars and worked the problem and got the 2

Answer 4

x+1 = 3
x = 2
or
x + 1 = -3
x = -4

Answer 5

I have to isolate what's between the bars on one side?

Answer 6

How come it's equal to 3??? Adding 4 to both sides makes it equal to 5. I don't understand.

Answer 7

are you asking why 4+ -1 = 3?

Answer 8

\[|x+1|-4=-1\] add 4
\[|x+1|=3\] the solve two equations separately
\[x+1=3\] or
\[x+1=-3\]

Answer 9

thanks :)

Answer 10

@ phi, i had it written as equal to 1, my mistake, sorry