9an=6a(n-1)*3-9a(n-2)-18

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Solution for 9an=6a(n-1)*3-9a(n-2)-18 equation:


Simplifying
9an = 6a(n + -1) * 3 + -9a(n + -2) + -18

Reorder the terms:
9an = 6a(-1 + n) * 3 + -9a(n + -2) + -18

Reorder the terms for easier multiplication:
9an = 6 * 3a(-1 + n) + -9a(n + -2) + -18

Multiply 6 * 3
9an = 18a(-1 + n) + -9a(n + -2) + -18
9an = (-1 * 18a + n * 18a) + -9a(n + -2) + -18
9an = (-18a + 18an) + -9a(n + -2) + -18

Reorder the terms:
9an = -18a + 18an + -9a(-2 + n) + -18
9an = -18a + 18an + (-2 * -9a + n * -9a) + -18
9an = -18a + 18an + (18a + -9an) + -18

Reorder the terms:
9an = -18 + -18a + 18a + 18an + -9an

Combine like terms: -18a + 18a = 0
9an = -18 + 0 + 18an + -9an
9an = -18 + 18an + -9an

Combine like terms: 18an + -9an = 9an
9an = -18 + 9an

Add '-9an' to each side of the equation.
9an + -9an = -18 + 9an + -9an

Combine like terms: 9an + -9an = 0
0 = -18 + 9an + -9an

Combine like terms: 9an + -9an = 0
0 = -18 + 0
0 = -18

Solving
0 = -18

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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