A(n)=-5.5+(n-1)(-5)

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Solution for A(n)=-5.5+(n-1)(-5) equation: 


Simplifying
A(n) = -5.5 + (n + -1)(-5)

Multiply A * n
nA = -5.5 + (n + -1)(-5)

Reorder the terms:
nA = -5.5 + (-1 + n)(-5)

Reorder the terms for easier multiplication:
nA = -5.5 + -5(-1 + n)
nA = -5.5 + (-1 * -5 + n * -5)
nA = -5.5 + (5 + -5n)

Combine like terms: -5.5 + 5 = -0.5
nA = -0.5 + -5n

Solving
nA = -0.5 + -5n

Solving for variable 'n'.

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

Add '5n' to each side of the equation.
5n + nA = -0.5 + -5n + 5n

Combine like terms: -5n + 5n = 0
5n + nA = -0.5 + 0
5n + nA = -0.5

Reorder the terms:
0.5 + 5n + nA = -0.5 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.5 + 5n + nA = 0.0

The solution to this equation could not be determined.

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