y^2-45=0

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Solution for y^2-45=0 equation: 


Simplifying
y2 + -45 = 0

Reorder the terms:
-45 + y2 = 0

Solving
-45 + y2 = 0

Solving for variable 'y'.

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

Add '45' to each side of the equation.
-45 + 45 + y2 = 0 + 45

Combine like terms: -45 + 45 = 0
0 + y2 = 0 + 45
y2 = 0 + 45

Combine like terms: 0 + 45 = 45
y2 = 45

Simplifying
y2 = 45

Take the square root of each side:
y = {-6.708203933, 6.708203933}

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