8m=2m+21

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Solution for 8m=2m+21 equation: 


Simplifying
8m = 2m + 21

Reorder the terms:
8m = 21 + 2m

Solving
8m = 21 + 2m

Solving for variable 'm'.

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

Add '-2m' to each side of the equation.
8m + -2m = 21 + 2m + -2m

Combine like terms: 8m + -2m = 6m
6m = 21 + 2m + -2m

Combine like terms: 2m + -2m = 0
6m = 21 + 0
6m = 21

Divide each side by '6'.
m = 3.5

Simplifying
m = 3.5

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