z^2-55=9

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Solution for z^2-55=9 equation: 


Simplifying
z2 + -55 = 9

Reorder the terms:
-55 + z2 = 9

Solving
-55 + z2 = 9

Solving for variable 'z'.

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

Add '55' to each side of the equation.
-55 + 55 + z2 = 9 + 55

Combine like terms: -55 + 55 = 0
0 + z2 = 9 + 55
z2 = 9 + 55

Combine like terms: 9 + 55 = 64
z2 = 64

Simplifying
z2 = 64

Take the square root of each side:
z = {-8, 8}

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