39z^2-39=0

Solution for 39z^2-39=0 equation:

Simplifying
39z2 + -39 = 0

Reorder the terms:
-39 + 39z2 = 0

Solving
-39 + 39z2 = 0

Solving for variable 'z'.

Move all terms containing z to the left, all other terms to the right.

Add '39' to each side of the equation.
-39 + 39 + 39z2 = 0 + 39

Combine like terms: -39 + 39 = 0
0 + 39z2 = 0 + 39
39z2 = 0 + 39

Combine like terms: 0 + 39 = 39
39z2 = 39

Divide each side by '39'.
z2 = 1

Simplifying
z2 = 1

Take the square root of each side:
z = {-1, 1}