y^2-80=0

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Solution for y^2-80=0 equation: 


Simplifying
y2 + -80 = 0

Reorder the terms:
-80 + y2 = 0

Solving
-80 + y2 = 0

Solving for variable 'y'.

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

Add '80' to each side of the equation.
-80 + 80 + y2 = 0 + 80

Combine like terms: -80 + 80 = 0
0 + y2 = 0 + 80
y2 = 0 + 80

Combine like terms: 0 + 80 = 80
y2 = 80

Simplifying
y2 = 80

Take the square root of each side:
y = {-8.94427191, 8.94427191}

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