X^2-13=3

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Solution for X^2-13=3 equation: 


Simplifying
X2 + -13 = 3

Reorder the terms:
-13 + X2 = 3

Solving
-13 + X2 = 3

Solving for variable 'X'.

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

Add '13' to each side of the equation.
-13 + 13 + X2 = 3 + 13

Combine like terms: -13 + 13 = 0
0 + X2 = 3 + 13
X2 = 3 + 13

Combine like terms: 3 + 13 = 16
X2 = 16

Simplifying
X2 = 16

Take the square root of each side:
X = {-4, 4}

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