(x-13)2=81

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Solution for (x-13)2=81 equation:


Simplifying
(x + -13) * 2 = 81

Reorder the terms:
(-13 + x) * 2 = 81

Reorder the terms for easier multiplication:
2(-13 + x) = 81
(-13 * 2 + x * 2) = 81
(-26 + 2x) = 81

Solving
-26 + 2x = 81

Solving for variable 'x'.

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

Add '26' to each side of the equation.
-26 + 26 + 2x = 81 + 26

Combine like terms: -26 + 26 = 0
0 + 2x = 81 + 26
2x = 81 + 26

Combine like terms: 81 + 26 = 107
2x = 107

Divide each side by '2'.
x = 53.5

Simplifying
x = 53.5

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