(x-3)2=20

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Solution for (x-3)2=20 equation:


Simplifying
(x + -3) * 2 = 20

Reorder the terms:
(-3 + x) * 2 = 20

Reorder the terms for easier multiplication:
2(-3 + x) = 20
(-3 * 2 + x * 2) = 20
(-6 + 2x) = 20

Solving
-6 + 2x = 20

Solving for variable 'x'.

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

Add '6' to each side of the equation.
-6 + 6 + 2x = 20 + 6

Combine like terms: -6 + 6 = 0
0 + 2x = 20 + 6
2x = 20 + 6

Combine like terms: 20 + 6 = 26
2x = 26

Divide each side by '2'.
x = 13

Simplifying
x = 13

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