first, rearrange the equation like this
5 + z -4z = 8
Then, simplify the "z"s Then, subtract 5 from both sides
-3z = 3
Then, divide both sides by -3
z = -1
To check
-1 + 5 - 4(-1) = 8
-1 + 5 + 4 = 8 -1 + 9 = 8
8 = 8
