72/m-72/m+0.9=4

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Solution for 72/m-72/m+0.9=4 equation: 



72/m-72/m+0.9=4

We move all terms to the left:

72/m-72/m+0.9-(4)=0



Domain of the equation: m!=0

m∈R



We add all the numbers together, and all the variables

72/m-72/m-3.1=0

We multiply all the terms by the denominator


-(3.1)*m+72-72=0

We add all the numbers together, and all the variables

-(3.1)*m=0

We multiply parentheses

-3.1m=0

m=0/-3.1

m=0

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