21-2m=8m+5

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Solution for 21-2m=8m+5 equation: 



21-2m=8m+5

We move all terms to the left:

21-2m-(8m+5)=0

We get rid of parentheses

-2m-8m-5+21=0

We add all the numbers together, and all the variables

-10m+16=0

We move all terms containing m to the left, all other terms to the right

-10m=-16

m=-16/-10

m=1+3/5

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