Question

B is between A and C. If AB = 2x + 1, BC = x, and AC = 22. Find AB.

Answer 1

Answer:

15

Step-by-step explanation:

AB + BC = AC

2x + 1 + x = 22

3x + 1    = 22

        3x = 22 -1

        3x = 21

         x = 21/3

   x = 7

AB = 2*7 +1

      = 14 + 1

      = 15