21=-6m+39

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Solution for 21=-6m+39 equation:


Simplifying
21 = -6m + 39

Reorder the terms:
21 = 39 + -6m

Solving
21 = 39 + -6m

Solving for variable 'm'.

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

Add '6m' to each side of the equation.
21 + 6m = 39 + -6m + 6m

Combine like terms: -6m + 6m = 0
21 + 6m = 39 + 0
21 + 6m = 39

Add '-21' to each side of the equation.
21 + -21 + 6m = 39 + -21

Combine like terms: 21 + -21 = 0
0 + 6m = 39 + -21
6m = 39 + -21

Combine like terms: 39 + -21 = 18
6m = 18

Divide each side by '6'.
m = 3

Simplifying
m = 3

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