21-4m=17

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Solution for 21-4m=17 equation: 



21-4m=17

We move all terms to the left:

21-4m-(17)=0

We add all the numbers together, and all the variables

-4m+4=0

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

-4m=-4

m=-4/-4

m=1

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