Please help me I need this turn in before 2

x=13

NM= 7

LK= 7

Explanation:

First we know that the whole line is 23 so let's put everything together:

x-6+9+2x-19=23

Now we add the ones that look the same:

x+2x=3x

-6+9-19=-16

so we have:

3x-16=23

now add 16 to 23 :

3x=39

39/3=13

therefore x=13

then just substitute for the others:

NM= (13)-6=7

LK=2(13)-19= 7