1) First, let's simplify the expression: 1 - (5 + 4t) = 1 - 5 - 4t = -4 - 4t

Now, we can simplify the right side of the equation: 2t - 5t = -3t

Therefore, the final equation is: -4 - 4t = -3t

To solve for t, we need to isolate t on one side of the equation.
-4 - 4t = -3t
-4 = t

So, the solution to the equation is t = -4.

2) First, let's simplify the expression: -4 (5z + 1) = -4 5z - 4 = -20z - 4

Next, simplify the right side of the equation: (2 - 5z) 2 = 2 2 - 5z * 2 = 4 - 10z

Therefore, the final equation is: -20z - 4 = 4 - 10z

To solve for z, we need to isolate z on one side of the equation.
-20z - 4 = 4 - 10z
-20z + 10z = 4 + 4
-10z = 8
z = -8/10
z = -0.8

So, the solution to the equation is z = -0.8.