Find AB and
BC of this isosceles
triangle.

Answer:
AB = 23, BC = 13
Step-by-step explanation:
[tex]5x - 7 = 23[/tex]
[tex]5x = 30[/tex]
[tex]x = 6[/tex]
AB = 23, BC = 3(6) - 5 = 18 - 5 = 13