Respuesta :

Answer:

[tex]\frac{97}{3}[/tex]

Step-by-step explanation:

1. in the rhombus AB=BC=CD=AD, then it is possible to write 7x+2=4x+15.

2. 4x+15=7x+2; ⇒ x=13/3;

3. if x=13/3, then

[tex]AB=7*\frac{13}{3} +2=\frac{97}{3}[/tex]