-1-2m=9

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Solution for -1-2m=9 equation:



-1-2m=9
We move all terms to the left:
-1-2m-(9)=0
We add all the numbers together, and all the variables
-2m-10=0
We move all terms containing m to the left, all other terms to the right
-2m=10
m=10/-2
m=-5

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