(Z+9)2=11

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Solution for (Z+9)2=11 equation:


Simplifying
(Z + 9) * 2 = 11

Reorder the terms:
(9 + Z) * 2 = 11

Reorder the terms for easier multiplication:
2(9 + Z) = 11
(9 * 2 + Z * 2) = 11
(18 + 2Z) = 11

Solving
18 + 2Z = 11

Solving for variable 'Z'.

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

Add '-18' to each side of the equation.
18 + -18 + 2Z = 11 + -18

Combine like terms: 18 + -18 = 0
0 + 2Z = 11 + -18
2Z = 11 + -18

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

Divide each side by '2'.
Z = -3.5

Simplifying
Z = -3.5

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