3m-21=-6

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Solution for 3m-21=-6 equation: 


Simplifying
3m + -21 = -6

Reorder the terms:
-21 + 3m = -6

Solving
-21 + 3m = -6

Solving for variable 'm'.

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

Add '21' to each side of the equation.
-21 + 21 + 3m = -6 + 21

Combine like terms: -21 + 21 = 0
0 + 3m = -6 + 21
3m = -6 + 21

Combine like terms: -6 + 21 = 15
3m = 15

Divide each side by '3'.
m = 5

Simplifying
m = 5

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