21=6m-9

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Solution for 21=6m-9 equation:


21=6m-9

We simplify the equation to the form, which is simple to understand 
21=6m-9

We move all terms containing m to the left and all other terms to the right. 
-6m=-9-21

We simplify left and right side of the equation. 
-6m=-30

We divide both sides of the equation by -06 to get m. 
m=5

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