9=m+1+m

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Solution for 9=m+1+m equation: 



9=m+1+m

We move all terms to the left:

9-(m+1+m)=0

We add all the numbers together, and all the variables

-(2m+1)+9=0

We get rid of parentheses

-2m-1+9=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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