42=3(2-3n)

Solution for 42=3(2-3n) equation:

Simplifying
42 = 3(2 + -3n)
42 = (2 * 3 + -3n * 3)
42 = (6 + -9n)

Solving
42 = 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.
42 + 9n = 6 + -9n + 9n

Combine like terms: -9n + 9n = 0
42 + 9n = 6 + 0
42 + 9n = 6

Add '-42' to each side of the equation.
42 + -42 + 9n = 6 + -42

Combine like terms: 42 + -42 = 0
0 + 9n = 6 + -42
9n = 6 + -42

Combine like terms: 6 + -42 = -36
9n = -36

Divide each side by '9'.
n = -4

Simplifying
n = -4