Respuesta :
9514 1404 393
Answer:
 x = 5
Step-by-step explanation:
The sum of the base lengths is twice the length of the midline.
 EF +HG = 2JK
 (3x +2) +(7x -2) = 2(25)
 10x = 50 . . . . . . simplify
 x = 5 . . . . . . . . . divide by 10
Answer:
the answer is x=5
Step-by-step explanation:
:)))))