(3n^3-5n)-(n^3-2n^2+1)=y

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Solution for (3n^3-5n)-(n^3-2n^2+1)=y equation: 


Simplifying
(3n3 + -5n) + -1(n3 + -2n2 + 1) = y

Reorder the terms:
(-5n + 3n3) + -1(n3 + -2n2 + 1) = y

Remove parenthesis around (-5n + 3n3)
-5n + 3n3 + -1(n3 + -2n2 + 1) = y

Reorder the terms:
-5n + 3n3 + -1(1 + -2n2 + n3) = y
-5n + 3n3 + (1 * -1 + -2n2 * -1 + n3 * -1) = y
-5n + 3n3 + (-1 + 2n2 + -1n3) = y

Reorder the terms:
-1 + -5n + 2n2 + 3n3 + -1n3 = y

Combine like terms: 3n3 + -1n3 = 2n3
-1 + -5n + 2n2 + 2n3 = y

Solving
-1 + -5n + 2n2 + 2n3 = y

Solving for variable 'n'.

Combine like terms: y + -1y = 0
-1 + -5n + 2n2 + 2n3 + -1y = 0

The solution to this equation could not be determined.

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