16=x^2-9

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Solution for 16=x^2-9 equation: 


Simplifying
16 = x2 + -9

Reorder the terms:
16 = -9 + x2

Solving
16 = -9 + x2

Solving for variable 'x'.

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

Add '-1x2' to each side of the equation.
16 + -1x2 = -9 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
16 + -1x2 = -9 + 0
16 + -1x2 = -9

Add '-16' to each side of the equation.
16 + -16 + -1x2 = -9 + -16

Combine like terms: 16 + -16 = 0
0 + -1x2 = -9 + -16
-1x2 = -9 + -16

Combine like terms: -9 + -16 = -25
-1x2 = -25

Divide each side by '-1'.
x2 = 25

Simplifying
x2 = 25

Take the square root of each side:
x = {-5, 5}

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