Question

What is the length of AB
14
51
28
20

Answer 1

Answer: 51

Explanation:

3x + 9 = 5x - 19

+ 19 + 19

3x +28 = 5x

- 3x -3x

28 = 2x

÷2 ÷2

14 = x

3x + 9

= 3(14) + 9

= 42 + 9

= 51

Answer 2

51

Explanation:

The segments are indicated to be congruent.

`3x+9=5x-19 \\ \\ 9=2x-19 \\ \\ 2x=28 \\ \\ x=14 \\ \\ \implies AB=3(14)+9=51`