Respuesta :

Answer:

BC = 25

Step-by-step explanation:

since this is an isosceles triangle AC = AB

2x+23 = 4x+1

subtract 2x from each side

2x+23 -2x = 4x+1-2x

23 = 2x+1

subtract 1 from each side

23-1 = 2x+1-1

22 = 2x

divide each side by 2

22/2 =2x/2

11= x

BC = 3x-8

BC = 3*11 -8

BC =33-8

BC = 25