An=3n-7

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Solution for An=3n-7 equation: 


Simplifying
An = 3n + -7

Reorder the terms:
nA = -7 + 3n

Solving
nA = -7 + 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 = -7 + 3n + -3n

Combine like terms: 3n + -3n = 0
-3n + nA = -7 + 0
-3n + nA = -7

Reorder the terms:
7 + -3n + nA = -7 + 7

Combine like terms: -7 + 7 = 0
7 + -3n + nA = 0

The solution to this equation could not be determined.

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