(K+9)2=7

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Solution for (K+9)2=7 equation:


Simplifying
(K + 9) * 2 = 7

Reorder the terms:
(9 + K) * 2 = 7

Reorder the terms for easier multiplication:
2(9 + K) = 7
(9 * 2 + K * 2) = 7
(18 + 2K) = 7

Solving
18 + 2K = 7

Solving for variable 'K'.

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

Add '-18' to each side of the equation.
18 + -18 + 2K = 7 + -18

Combine like terms: 18 + -18 = 0
0 + 2K = 7 + -18
2K = 7 + -18

Combine like terms: 7 + -18 = -11
2K = -11

Divide each side by '2'.
K = -5.5

Simplifying
K = -5.5

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