8m-4=-20

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Solution for 8m-4=-20 equation: 



8m-4=-20

We move all terms to the left:

8m-4-(-20)=0

We add all the numbers together, and all the variables

8m+16=0

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

8m=-16

m=-16/8

m=-2

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