Un=3(3n-2)

Solution for Un=3(3n-2) equation:

Simplifying
Un = 3(3n + -2)

Reorder the terms:
nU = 3(-2 + 3n)
nU = (-2 * 3 + 3n * 3)
nU = (-6 + 9n)

Solving
nU = -6 + 9n

Solving for variable 'n'.

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

Add '-9n' to each side of the equation.
-9n + nU = -6 + 9n + -9n

Combine like terms: 9n + -9n = 0
-9n + nU = -6 + 0
-9n + nU = -6

Reorder the terms:
6 + -9n + nU = -6 + 6

Combine like terms: -6 + 6 = 0
6 + -9n + nU = 0

The solution to this equation could not be determined.