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

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


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

Multiply A * n
nA = -12 + (n + -1)(-3)

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

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

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

Solving
nA = -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.
3n + nA = -9 + -3n + 3n

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

Reorder the terms:
9 + 3n + nA = -9 + 9

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

The solution to this equation could not be determined.

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