Answer:
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
