In rhombus jklm, jk=8x−17jk=8x−17 and kl=6x−5kl=6x−5. what is the value of x?

Rhombus s a simple (non-self-intersecting) quadrilateral whose four sides all have the same length. Another name is equilateral quadrilateral, since equilateral means that all of its sides are equal in length. 

So JK = KL

8x – 17 = 6x -5

2x = 12

X = 6

I'm pretty sure it's c. extremely gradual but not 100% sure though.

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