Points A,B,C,and D are collinear and positioned in that order. Find the length indicated. AD = x + 16, CD - 5, BC = x + 10, and AB = x + 4, find BC

Question

Points A, B, C and D are collinear and positioned in that order. Find the length for BC.

Answer 1

Assuming CD - 5 means CD = 5, AB+BC+CD=AD=x+16; x+4+x+10+5=x+16; x+19=16, so x=-3. Therefore BC=-3+10=7.