3m-3=-21

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Solution for 3m-3=-21 equation: 


Simplifying
3m + -3 = -21

Reorder the terms:
-3 + 3m = -21

Solving
-3 + 3m = -21

Solving for variable 'm'.

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

Add '3' to each side of the equation.
-3 + 3 + 3m = -21 + 3

Combine like terms: -3 + 3 = 0
0 + 3m = -21 + 3
3m = -21 + 3

Combine like terms: -21 + 3 = -18
3m = -18

Divide each side by '3'.
m = -6

Simplifying
m = -6

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