5m+9n=2m+21n

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Solution for 5m+9n=2m+21n equation:


Simplifying
5m + 9n = 2m + 21n

Solving
5m + 9n = 2m + 21n

Solving for variable 'm'.

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

Add '-2m' to each side of the equation.
5m + -2m + 9n = 2m + -2m + 21n

Combine like terms: 5m + -2m = 3m
3m + 9n = 2m + -2m + 21n

Combine like terms: 2m + -2m = 0
3m + 9n = 0 + 21n
3m + 9n = 21n

Add '-9n' to each side of the equation.
3m + 9n + -9n = 21n + -9n

Combine like terms: 9n + -9n = 0
3m + 0 = 21n + -9n
3m = 21n + -9n

Combine like terms: 21n + -9n = 12n
3m = 12n

Divide each side by '3'.
m = 4n

Simplifying
m = 4n

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