Answer:
AC=52
BC=26
Explanation:
We are given a line Line Segment AC and B is the midpoint of AC.
Given that BC=3x-1 and AC=8x-20
Hence AC = 2 x BC
8x-20=2(3x-1)
8x-20=6x-2
8x-6x=20-2
2x=18
x=9
Hence
AC= 8x-20
= 8(9)-20
= 72-20
= 52
Also
2BC= AC
BC=26