(n-1)*6=30

Solution for (n-1)*6=30 equation:

Simplifying
(n + -1) * 6 = 30

Reorder the terms:
(-1 + n) * 6 = 30

Reorder the terms for easier multiplication:
6(-1 + n) = 30
(-1 * 6 + n * 6) = 30
(-6 + 6n) = 30

Solving
-6 + 6n = 30

Solving for variable 'n'.

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

Add '6' to each side of the equation.
-6 + 6 + 6n = 30 + 6

Combine like terms: -6 + 6 = 0
0 + 6n = 30 + 6
6n = 30 + 6

Combine like terms: 30 + 6 = 36
6n = 36

Divide each side by '6'.
n = 6

Simplifying
n = 6