Respuesta :

sqdancefan

9514 1404 393

Answer:

  27

Step-by-step explanation:

Adjacent angles in a parallelogram are supplementary.

  (5z -6) +(2z -3) = 180

  7z = 189 . . . . . . . . . . . . . collect terms, add 9

  z = 27 . . . . . . . divide by 7