(x-7)2=20

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Solution for (x-7)2=20 equation:


Simplifying
(x + -7) * 2 = 20

Reorder the terms:
(-7 + x) * 2 = 20

Reorder the terms for easier multiplication:
2(-7 + x) = 20
(-7 * 2 + x * 2) = 20
(-14 + 2x) = 20

Solving
-14 + 2x = 20

Solving for variable 'x'.

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

Add '14' to each side of the equation.
-14 + 14 + 2x = 20 + 14

Combine like terms: -14 + 14 = 0
0 + 2x = 20 + 14
2x = 20 + 14

Combine like terms: 20 + 14 = 34
2x = 34

Divide each side by '2'.
x = 17

Simplifying
x = 17

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