3(m+2n+2m-4n)=

Solution for 3(m+2n+2m-4n)= equation:

Simplifying
3(m + 2n + 2m + -4n) = 0

Reorder the terms:
3(m + 2m + 2n + -4n) = 0

Combine like terms: m + 2m = 3m
3(3m + 2n + -4n) = 0

Combine like terms: 2n + -4n = -2n
3(3m + -2n) = 0
(3m * 3 + -2n * 3) = 0
(9m + -6n) = 0

Solving
9m + -6n = 0

Solving for variable 'm'.

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

Add '6n' to each side of the equation.
9m + -6n + 6n = 0 + 6n

Combine like terms: -6n + 6n = 0
9m + 0 = 0 + 6n
9m = 0 + 6n
Remove the zero:
9m = 6n

Divide each side by '9'.
m = 0.6666666667n

Simplifying
m = 0.6666666667n