Given:
DE = (6x - 9) cm
EF = (4x + 4) cm
LM = 14 cm
MN = 16 cm
To find:
The value of x.
Solution:
<em>If three or more parallel lines intersect two transversals, then they cut off the transversals proportionally.</em>


Do cross multiplication.


Add 144 on both sides.


Subtract 56x from both sides.


Divide by 40 on both sides, we get

The value of x is 5.
Answer:
Step-by-step explanation: