7m+3n=21

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Solution for 7m+3n=21 equation: 


Simplifying
7m + 3n = 21

Solving
7m + 3n = 21

Solving for variable 'm'.

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

Add '-3n' to each side of the equation.
7m + 3n + -3n = 21 + -3n

Combine like terms: 3n + -3n = 0
7m + 0 = 21 + -3n
7m = 21 + -3n

Divide each side by '7'.
m = 3 + -0.4285714286n

Simplifying
m = 3 + -0.4285714286n

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