21=6m-15

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Solution for 21=6m-15 equation:


Simplifying
21 = 6m + -15

Reorder the terms:
21 = -15 + 6m

Solving
21 = -15 + 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 = -15 + 6m + -6m

Combine like terms: 6m + -6m = 0
21 + -6m = -15 + 0
21 + -6m = -15

Add '-21' to each side of the equation.
21 + -21 + -6m = -15 + -21

Combine like terms: 21 + -21 = 0
0 + -6m = -15 + -21
-6m = -15 + -21

Combine like terms: -15 + -21 = -36
-6m = -36

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

Simplifying
m = 6

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