m-1=7-m

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Solution for m-1=7-m equation: 



m-1=7-m

We move all terms to the left:

m-1-(7-m)=0

We add all the numbers together, and all the variables

m-(-1m+7)-1=0

We get rid of parentheses

m+1m-7-1=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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