Respuesta :

Answer:

z = 4

Step-by-step explanation:

12z - 18 = 30

add 18 to both sides:

12z = 48

divide by 12:

z = 4

Answer:

z = 4

Step-by-step explanation:

SO first we have to Add 18 to both sides;

48 = 12z OR 12x = 48

Divide both sides by 12

z = 4

Q&A Education