Question 443071
Ahh. Much better :)

z = 14 -y.

To solve for y, we need to isolate y on one side and the rest of the variables/constants on the other.

To do this, let's first add y to both sides.

z +y = 14 -y + y 

z+y = 14

To finish this off, let's subtract z on both sides.

{{{highlight(y = 14 -z)}}}