Question

What is the answer to |-2x-5|-|-4+8| and x=7

Answer 1

15

Explanation:

Note that the absolute value always returns a positive value, that is

| a | = | - a | = a

given | - 2x - 5 | - | - 4 + 8 | with x = 7, then

| - 14 - 5 | - | - 4 + 8 |

= | - 19 | - | 4 |

= 19 - 4 = 15

Answer 2

15

Explanation:

|-2x-5|-|-4+8|

= |-2(7) -5| - |-4+8|

= |-19| - |4|

= 19 -4

= 15