20m=7-m

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Solution for 20m=7-m equation: 



20m=7-m

We move all terms to the left:

20m-(7-m)=0

We add all the numbers together, and all the variables

20m-(-1m+7)=0

We get rid of parentheses

20m+1m-7=0

We add all the numbers together, and all the variables

21m-7=0

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

21m=7

m=7/21

m=1/3

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