What is x? Can you please help?

Answer:
The answer to your question is: x = 2
Step-by-step explanation:
Data
LM = 6x
MN = 10x + 4
LN = 20x - 4
x = ?
Process
LM + MN = LN
Then
6x + 10x + 4 = 20x - 4
Solve for x 16x + 4 = 20x -4
16x - 20x = -4 - 4
-4x = -8
x = -8/-4
x = 2
6(2) + 10(2) + 4 = 20(2) - 4
12 + 20 + 4 = 40 -4
36 = 36