X^2-20=30

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Solution for X^2-20=30 equation: 


Simplifying
X2 + -20 = 30

Reorder the terms:
-20 + X2 = 30

Solving
-20 + X2 = 30

Solving for variable 'X'.

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

Add '20' to each side of the equation.
-20 + 20 + X2 = 30 + 20

Combine like terms: -20 + 20 = 0
0 + X2 = 30 + 20
X2 = 30 + 20

Combine like terms: 30 + 20 = 50
X2 = 50

Simplifying
X2 = 50

Take the square root of each side:
X = {-7.071067812, 7.071067812}

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