m-9+21=-13+6

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Solution for m-9+21=-13+6 equation:


Simplifying
m + -9 + 21 = -13 + 6

Reorder the terms:
-9 + 21 + m = -13 + 6

Combine like terms: -9 + 21 = 12
12 + m = -13 + 6

Combine like terms: -13 + 6 = -7
12 + m = -7

Solving
12 + m = -7

Solving for variable 'm'.

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

Add '-12' to each side of the equation.
12 + -12 + m = -7 + -12

Combine like terms: 12 + -12 = 0
0 + m = -7 + -12
m = -7 + -12

Combine like terms: -7 + -12 = -19
m = -19

Simplifying
m = -19

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