Solve for p.

3+|1+p|=12

p = 8 or p=−10

p = 14 or p=−16

p = 10 or p=−10

p = 8 or p=−8

Question

Solve for p.

3+|1+p|=12

 

p = 8 or p=−10

p = 14 or p=−16

p = 10 or p=−10

p = 8 or p=−8

mathmale · Answer

Start by isolating |1+p|.  Do this by subtracting 3 from both sides of your equation.  Show your work, please.

newwar · Answer

3+1=4 so D

563blackghost · Answer

Not quite. 

We would isolate $\large{|1+p|}$ so we would subtract 3 from both sides in order to get it to itself so....

$\huge{(3-3)|1+p|=12-3}$

What would that equal?

newwar · Answer

(3-3=0) (1+p=?) (12-3=9)

mathmale · Answer

$$\huge{(3-3)|1+p|=12-3}$$

mathmale · Answer

is not correct.  Both of you, please work on this to find and correct the error.

mathmale · Answer

This post is newwar's; please help newwar solve the problem himself or herself.

mathmale · Answer

Again, subtract 3 from both sides of the original equation.

brainzonly · Answer

I'm following mathmale around giving him medals :D

mathmale · Answer

newwar?

   3+|1+p|=12
  -3            = -3
--------------


Please complete this work.

563blackghost · Answer

I seemed to have written the equation wrong but I seem to have gotten the right answer. Sorry about that.

newwar · Answer

i am sorry i dont know what to do first

563blackghost · Answer

This can help you understand :) http://www.coolmath.com/algebra/18-absolute-value-equations-inequalities/02-solving-absolute-value-equations-01

mathmale · Answer

Given

   3+|1+p|=12
  -3            = -3
--------------

please begin by subtracting 3 from 3.  Type out your result.

mathmale · Answer

3
  - 3
-----

    ??

newwar · Answer

that is 0

mathmale · Answer

True, so then you have |1+p| on the left side.  What have you on the right side?

newwar · Answer

subtract 3

mathmale · Answer

Yes, subtract 3 from 12.  Your result?

newwar · Answer

-9