I think it would be conditional, because B depends on A. Of A is false, then B isn’t possible, making it conditional.
First you have to find the measurement of the entire line,which will be equal x, than plug in in the equation between L and M
Answer:
-6
Step-by-step explanation:

input the numbers

do the problem in the parentheses first
-6-12 = -18
now it becomes

simplify and you'll get
-6
this is because -18 ÷ 3 =
-6