m+9=12

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Solution for m+9=12 equation: 


Simplifying
m + 9 = 12

Reorder the terms:
9 + m = 12

Solving
9 + m = 12

Solving for variable 'm'.

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

Add '-9' to each side of the equation.
9 + -9 + m = 12 + -9

Combine like terms: 9 + -9 = 0
0 + m = 12 + -9
m = 12 + -9

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

Simplifying
m = 3

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