Respuesta :

dinithisula

Answer:

11)(-1)

12)1.7

Step-by-step explanation:

11)y+z/x                

 (-3)+(-2)/5

 (-5)/5

   (-1)

12)x-5z/y

   5+5(-2)/(-3)

   5+(-10)/(-3)

   (-5)/(-3)

   1.666

     1.7

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