Question

If B is the midpoint of AC, and AC = 8x-20, find BC.

Answer 1

Explanation:

B is the midpoint of AC, where all 3 points are on the same line.

This means that AB = BC and AB + BC = AC, which is equals to 8x - 20.

Hence, BC = 0.5(8x + 20) = 4x + 10.