-10m+9=-21

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Solution for -10m+9=-21 equation: 


Simplifying
-10m + 9 = -21

Reorder the terms:
9 + -10m = -21

Solving
9 + -10m = -21

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 + -10m = -21 + -9

Combine like terms: 9 + -9 = 0
0 + -10m = -21 + -9
-10m = -21 + -9

Combine like terms: -21 + -9 = -30
-10m = -30

Divide each side by '-10'.
m = 3

Simplifying
m = 3

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