x^2-4.5=20

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Solution for x^2-4.5=20 equation: 


Simplifying
x2 + -4.5 = 20

Reorder the terms:
-4.5 + x2 = 20

Solving
-4.5 + x2 = 20

Solving for variable 'x'.

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

Add '4.5' to each side of the equation.
-4.5 + 4.5 + x2 = 20 + 4.5

Combine like terms: -4.5 + 4.5 = 0.0
0.0 + x2 = 20 + 4.5
x2 = 20 + 4.5

Combine like terms: 20 + 4.5 = 24.5
x2 = 24.5

Simplifying
x2 = 24.5

Take the square root of each side:
x = {-4.949747468, 4.949747468}

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