An=50+(-80)(n-1)

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Solution for An=50+(-80)(n-1) equation:


Simplifying
An = 50 + (-80)(n + -1)

Reorder the terms:
nA = 50 + -80(-1 + n)
nA = 50 + (-1 * -80 + n * -80)
nA = 50 + (80 + -80n)

Combine like terms: 50 + 80 = 130
nA = 130 + -80n

Solving
nA = 130 + -80n

Solving for variable 'n'.

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

Add '80n' to each side of the equation.
80n + nA = 130 + -80n + 80n

Combine like terms: -80n + 80n = 0
80n + nA = 130 + 0
80n + nA = 130

Reorder the terms:
-130 + 80n + nA = 130 + -130

Combine like terms: 130 + -130 = 0
-130 + 80n + nA = 0

The solution to this equation could not be determined.

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