3mn-6n=21

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Solution for 3mn-6n=21 equation: 


Simplifying
3mn + -6n = 21

Solving
3mn + -6n = 21

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.
3mn + -6n + 6n = 21 + 6n

Combine like terms: -6n + 6n = 0
3mn + 0 = 21 + 6n
3mn = 21 + 6n

Divide each side by '3n'.
m = 7n-1 + 2

Simplifying
m = 7n-1 + 2

Reorder the terms:
m = 2 + 7n-1

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