169=z^2

Solution for 169=z^2 equation:

Simplifying
169 = z2

Solving
169 = z2

Solving for variable 'z'.

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

Add '-1z2' to each side of the equation.
169 + -1z2 = z2 + -1z2

Combine like terms: z2 + -1z2 = 0
169 + -1z2 = 0

Add '-169' to each side of the equation.
169 + -169 + -1z2 = 0 + -169

Combine like terms: 169 + -169 = 0
0 + -1z2 = 0 + -169
-1z2 = 0 + -169

Combine like terms: 0 + -169 = -169
-1z2 = -169

Divide each side by '-1'.
z2 = 169

Simplifying
z2 = 169

Take the square root of each side:
z = {-13, 13}