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25-20/m=5

We move all terms to the left:

25-20/m-(5)=0

Domain of the equation: m!=0We add all the numbers together, and all the variables

m∈R

-20/m+20=0

We multiply all the terms by the denominator

20*m-20=0

We add all the numbers together, and all the variables

20m-20=0

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

20m=20

m=20/20

m=1

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