Step-by-step explanation:
Since, all sides of a rhombus are equal.
[tex] \therefore \: OP = ON\\\therefore \: 13x + 2 = 8x + 17 \\ \therefore \: 13x - 8x = 17 - 2 \\ \therefore \: 5x = 15 \\ \therefore \:x = \frac{15}{5} \\ \huge \red{ \boxed{\therefore \:x = 3}}[/tex]