8m-9=-5+17

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Solution for 8m-9=-5+17 equation: 



8m-9=-5+17

We move all terms to the left:

8m-9-(-5+17)=0

We add all the numbers together, and all the variables

8m-9-12=0

We add all the numbers together, and all the variables

8m-21=0

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

8m=21

m=21/8

m=2+5/8

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