21=3m+6

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Solution for 21=3m+6 equation:


Simplifying
21 = 3m + 6

Reorder the terms:
21 = 6 + 3m

Solving
21 = 6 + 3m

Solving for variable 'm'.

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

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

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

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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