9-2n=3(n+2)

Solution for 9-2n=3(n+2) equation:

Simplifying
9 + -2n = 3(n + 2)

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

Solving
9 + -2n = 6 + 3n

Solving for variable 'n'.

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

Add '-3n' to each side of the equation.
9 + -2n + -3n = 6 + 3n + -3n

Combine like terms: -2n + -3n = -5n
9 + -5n = 6 + 3n + -3n

Combine like terms: 3n + -3n = 0
9 + -5n = 6 + 0
9 + -5n = 6

Add '-9' to each side of the equation.
9 + -9 + -5n = 6 + -9

Combine like terms: 9 + -9 = 0
0 + -5n = 6 + -9
-5n = 6 + -9

Combine like terms: 6 + -9 = -3
-5n = -3

Divide each side by '-5'.
n = 0.6

Simplifying
n = 0.6