Respuesta :

Answer:

z = 3

Step-by-step explanation:

z - (-12) = 15

z + 12 = 15

z = 15 - 12

z = 3

Thus, The value of z is 3

-TheUnknownScientist

Answer:

3

Step-by-step explanation:

z+12=15

z+12-12=15-12

z=3