(n)=12+(n-1)(3)

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Solution for (n)=12+(n-1)(3) equation:


Simplifying
(n) = 12 + (n + -1)(3)
n = 12 + (n + -1)(3)

Reorder the terms:
n = 12 + (-1 + n)(3)

Reorder the terms for easier multiplication:
n = 12 + 3(-1 + n)
n = 12 + (-1 * 3 + n * 3)
n = 12 + (-3 + 3n)

Combine like terms: 12 + -3 = 9
n = 9 + 3n

Solving
n = 9 + 3n

Solving for variable 'n'.

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

Add '-3n' to each side of the equation.
n + -3n = 9 + 3n + -3n

Combine like terms: n + -3n = -2n
-2n = 9 + 3n + -3n

Combine like terms: 3n + -3n = 0
-2n = 9 + 0
-2n = 9

Divide each side by '-2'.
n = -4.5

Simplifying
n = -4.5

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