Question

points A,B,C, and D are collinear and positioned in that order. Find the length indicated. Find BC if AB = 3x+47, AC =27+x, BD= x+26, and CD=10

Answer 1

BC = 4

Explanation:

AB = 3x + 47

AC = 27 + x

BD = x + 26

CD = 10

BD = BC + CD

x + 26 = BC + 10

BC = x+ 16

AC = AB + BC

27 + x = 3x + 47 + x + 16

27 + x = 4x + 63

3x = 27- 63

x= -12

BC = -12 + 16 = 4