Question

Find the value of y and BC if B is between A and C, AC = 4x - 12, AB = x, and BC = 2x + 3.

Answer 1

AB + BC = AC

x + 2x+1 = 22

3x +1 = 22

3x = 21

x = 7

AB = 7

BC = 2*7+1 = 14 + 1 = 15