21-6m=3m-2m

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Solution for 21-6m=3m-2m equation:


Simplifying
21 + -6m = 3m + -2m

Combine like terms: 3m + -2m = 1m
21 + -6m = 1m

Solving
21 + -6m = 1m

Solving for variable 'm'.

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

Add '-1m' to each side of the equation.
21 + -6m + -1m = 1m + -1m

Combine like terms: -6m + -1m = -7m
21 + -7m = 1m + -1m

Combine like terms: 1m + -1m = 0
21 + -7m = 0

Add '-21' to each side of the equation.
21 + -21 + -7m = 0 + -21

Combine like terms: 21 + -21 = 0
0 + -7m = 0 + -21
-7m = 0 + -21

Combine like terms: 0 + -21 = -21
-7m = -21

Divide each side by '-7'.
m = 3

Simplifying
m = 3

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