2m+9n-3(2m-7n)=

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Solution for 2m+9n-3(2m-7n)= equation: 


Simplifying
2m + 9n + -3(2m + -7n) = 0
2m + 9n + (2m * -3 + -7n * -3) = 0
2m + 9n + (-6m + 21n) = 0

Reorder the terms:
2m + -6m + 9n + 21n = 0

Combine like terms: 2m + -6m = -4m
-4m + 9n + 21n = 0

Combine like terms: 9n + 21n = 30n
-4m + 30n = 0

Solving
-4m + 30n = 0

Solving for variable 'm'.

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

Add '-30n' to each side of the equation.
-4m + 30n + -30n = 0 + -30n

Combine like terms: 30n + -30n = 0
-4m + 0 = 0 + -30n
-4m = 0 + -30n
Remove the zero:
-4m = -30n

Divide each side by '-4'.
m = 7.5n

Simplifying
m = 7.5n

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