#### Answer

AB = 14.

#### Work Step by Step

Step 1: Begin with the equation AB + BC = AC
Step 2: Substitute 25 for and 11 for BC.
So, AB + 11 = 25
Step 3: Subtract 11 from both sides.
AB + 11 - 11 = 25 - 11
Step 4: Solve. AB = 14.