m+9=6-21

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Solution for m+9=6-21 equation: 


Simplifying
m + 9 = 6 + -21

Reorder the terms:
9 + m = 6 + -21

Combine like terms: 6 + -21 = -15
9 + m = -15

Solving
9 + m = -15

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 = -15 + -9

Combine like terms: 9 + -9 = 0
0 + m = -15 + -9
m = -15 + -9

Combine like terms: -15 + -9 = -24
m = -24

Simplifying
m = -24

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