Friday

December 19, 2014

December 19, 2014

Posted by **jaz** on Sunday, September 18, 2011 at 11:40pm.

- math -
**Anonymous**, Monday, September 19, 2011 at 5:22amIn mathematics, the absolute value |a| of a real number a is the numerical value of a without regard to its sign.

So, for example, the absolute value of 3 is 3, and the absolute value of

-3 is also 3.

In this case:

| 4 x + 5 | = 4 x + 5

OR

| 4 x + 5 | = - ( 4 x + 5 ) = - 4 x - 5

Equation:

3 x + | 4 x + 5 | = 10

has two solutions.

1.)

3 x + 4 x + 5 = 10

7 x = 10 - 5

7 x = 5 Divide both sides with 7

x = 5 / 7

2.)

3 x - ( 4 x + 5 ) = 10

3 x - 4 x - 5 = 10

- x = 10 + 5

- x = 15 Multiply both sides with - 1

x = - 15

- math -
**Anonymous**, Monday, September 19, 2011 at 5:26am| 4 x + 5 | = 4 x + 5

| - ( 4 x + 5 ) | = | - 4 x - 5 | = | 4 x + 5 |

- math -
**Reiny**, Monday, September 19, 2011 at 8:34amMore direct way:

3x+|4x+5|=10

|4x+5| = 10-3x

4x+5 = 10-3x OR -4x-5 = 10-3x

7x = 5 OR -x = 15

x = 5/7 OR x = -15

**Answer this Question**

**Related Questions**

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

college math - solve absolute value 2x-20 absolute value=absolute value 9x+ ...

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

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

Math - Can someone please help me with an algebra problem? -|4-8b|=12 I really ...

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

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

SAT Math - Can I please get some help on these questions: 1. If , find the value...

Math 156 - how do you solve this -absolute value -5 -(4)absolute value?

Math - What would the absolute value be? \ 2-3\ if you solve it the answer comes...