-9(3-m+n)=

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

Simplifying
-9(3 + -1m + n) = 0
(3 * -9 + -1m * -9 + n * -9) = 0
(-27 + 9m + -9n) = 0

Solving
-27 + 9m + -9n = 0

Solving for variable 'm'.

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

Add '27' to each side of the equation.
-27 + 9m + 27 + -9n = 0 + 27

Reorder the terms:
-27 + 27 + 9m + -9n = 0 + 27

Combine like terms: -27 + 27 = 0
0 + 9m + -9n = 0 + 27
9m + -9n = 0 + 27

Combine like terms: 0 + 27 = 27
9m + -9n = 27

Add '9n' to each side of the equation.
9m + -9n + 9n = 27 + 9n

Combine like terms: -9n + 9n = 0
9m + 0 = 27 + 9n
9m = 27 + 9n

Divide each side by '9'.
m = 3 + n

Simplifying
m = 3 + n