-5m+9n=21

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Solution for -5m+9n=21 equation: 


Simplifying
-5m + 9n = 21

Solving
-5m + 9n = 21

Solving for variable 'm'.

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

Add '-9n' to each side of the equation.
-5m + 9n + -9n = 21 + -9n

Combine like terms: 9n + -9n = 0
-5m + 0 = 21 + -9n
-5m = 21 + -9n

Divide each side by '-5'.
m = -4.2 + 1.8n

Simplifying
m = -4.2 + 1.8n

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