What equation do you get when you solve z-m=z+bx for x?

Well you have to leave x by it self so you would subtract z first and move it to the right now you would be left with m=bx now divide by b to leave the x by itself and get m/b=x

Hope this helps

Z-m=z+bx
First, let's subtract z from each side:
z-m-z = z+bx-z
-m=bx
Then, to find x, you divide both sides by b to get the variable x alone on a side, and the others on another side:
-m/b = bx/b
-m/b = x

So, in z-m = z+bx, x = -m/b

Hope this Helps! :)