Answer:
DE = 11
Explanation:
Line AC and CB both multiply to the same amount that lines DC and CE do.
Line CB is equal to 10 - 4 = 6
So then 4 x 6 is equal to line DC,
But the result is 24, so we need to divide by 8 to find the lone side:
24 ÷ 8 = 3
So line DC = 3
Line DE = DC + CE = 3 + 8
Which means the line is 11!
Hope this helps!