Question

−3=z−8

Find what Z is

Answer 1

Answer:

z=5

Trust me I don't know how to explain it.

Answer 2

-3=z-8
Move the variable to the left side and change it’s sign

-z-3=-8
Move the constant to the right side and change its sign

-z=-8+3

Now you calculate the sum

-z=-5

Change both signs of the equation

z=5, therefore z=5 your answer.