Sunday

April 20, 2014

April 20, 2014

Posted by **lindsay** on Thursday, December 13, 2012 at 3:47pm.

4-{x-3}=0

PS. The brackets are supposed to be the straight lines for the absolute symbols.

- math -
**Steve**, Thursday, December 13, 2012 at 3:51pmwho are all these people that can't find the "|" key? It's shift-\ on every keyboard I've seen.

4-|x-3| = 0

if (x-3) > 0, |x-3| = x-3 and we have

4-(x-3) = 0

4-x+3 = 0

7-x = 0

x = 7

if (x-3) < 0, |x-3| = -(x-3) = 3-x

4-(3-x) = 0

1+x = 0

x = -1

Note that sometimes there are unusable solutions, as in some case where you have

if (x+3) > 5

and you end up with a "solution" of x = -2

which does not satisfy the condition.

In this problems, the solutions obeyed the conditions.

- math -
**Joey**, Thursday, December 13, 2012 at 3:52pmIn order to void the absolute value bars, it needs to stand by itself.

So 4=|x-3|

Now get rid of the value bars and you get:

7 = x

Plug it in and see !

**Related Questions**

math !!!!!!please part of a major grade!!!!!! - when in the absolute value of x ...

math, help - For the following set, which number has the largest absolute value...

math - i can figure this out -2+|-5+6| i try inverse but im still getting it ...

math - when in the absolute value of x equal to the absolute value of negative x...

Algebra - Were doing Absolute value so the brackets you see are ment to be for ...

Math - 1. Suppose a and b are integers, and the absolute value of a is > than...

8th grade math - Hi! I need some help with absolute value. First, I want to ask ...

Algebra-help please - Please help me graph this Absolute value x+1 inside ...

calculus - Let M=1000. Which of the conditions is equivalent to f(x)= 1/((4x-12...

math - Does absolute value n+m= absolute value n + absolute value m for all ...