2m-7+8=-1

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Solution for 2m-7+8=-1 equation: 



2m-7+8=-1

We move all terms to the left:

2m-7+8-(-1)=0

We add all the numbers together, and all the variables

2m+2=0

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

2m=-2

m=-2/2

m=-1

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