Answer:
8
Step-by-step explanation:
8x+2=10x
-8x -8x
2=2x
x=1
8(1)=8
MN = 8
LN = LM + MN , substitute values
10x = 2 + 8x ( subtract 8x from both sides )
2x = 2 ( divide both sides by 2 )
x = 1
Then
MN = 8x = 8 × 1 = 8
