1+3m=9-m

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Solution for 1+3m=9-m equation: 



1+3m=9-m

We move all terms to the left:

1+3m-(9-m)=0

We add all the numbers together, and all the variables

3m-(-1m+9)+1=0

We get rid of parentheses

3m+1m-9+1=0

We add all the numbers together, and all the variables

4m-8=0

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

4m=8

m=8/4

m=2

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