Question

Write a complete two-column proof for the following information.

Given: AB = 3y - 1, BC = 7y, AC = 29
Prove: AB = 8

Answer 1

The answer to your question is below

Explanation:

Data

AB = 3y - 1

BC = 7y

AC = 29

Prove AB = 8

AB + BC = AC

3y - 1 + 7y = 29

10y -1 = 29

10y = 29 + 1

10y = 30

y = 30/10

y = 3

AB = 3y - 1

= 3(3) - 1

= 9 - 1

= 8