-1+m=-m-9

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Solution for -1+m=-m-9 equation: 



-1+m=-m-9

We move all terms to the left:

-1+m-(-m-9)=0

We add all the numbers together, and all the variables

m-(-1m-9)-1=0

We get rid of parentheses

m+1m+9-1=0

We add all the numbers together, and all the variables

2m+8=0

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

2m=-8

m=-8/2

m=-4

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