7(m+3n)=

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Solution for 7(m+3n)= equation: 


Simplifying
7(m + 3n) = 0
(m * 7 + 3n * 7) = 0
(7m + 21n) = 0

Solving
7m + 21n = 0

Solving for variable 'm'.

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

Add '-21n' to each side of the equation.
7m + 21n + -21n = 0 + -21n

Combine like terms: 21n + -21n = 0
7m + 0 = 0 + -21n
7m = 0 + -21n
Remove the zero:
7m = -21n

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

Simplifying
m = -3n

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