What is the solution to the equation?
2 - z/3 =12
a.
z = –42
b.
z = –34
c.
z = –30
d.
z = 42

First, add 2 to both sides, and you get z/3 = 14. Then multiply 3 to both sides. 3 x 14 = 42, so we have z = 42. :)

3 brownies divided by 8 sisters is 3/8 of a brownie per sister because if you draw a simple model including 3 squares to substitute 3 brownies and divide it into 8 equal pieces, one piece for each sister per brownie, you should get 3/8 of a brownie per sister. Hope this helped!