m-1=9-m

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Solution for m-1=9-m equation: 



m-1=9-m

We move all terms to the left:

m-1-(9-m)=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-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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