4=20-1/2m

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Solution for 4=20-1/2m equation: 



4=20-1/2m

We move all terms to the left:

4-(20-1/2m)=0



Domain of the equation: 2m)!=0

m!=0/1

m!=0

m∈R



We add all the numbers together, and all the variables

-(-1/2m+20)+4=0

We get rid of parentheses

1/2m-20+4=0

We multiply all the terms by the denominator


-20*2m+4*2m+1=0

Wy multiply elements

-40m+8m+1=0

We add all the numbers together, and all the variables

-32m+1=0

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

-32m=-1

m=-1/-32

m=1/32

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