4.2=10.8+5x/x+3

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Solution for 4.2=10.8+5x/x+3 equation: 



4.2=10.8+5x/x+3

We move all terms to the left:

4.2-(10.8+5x/x+3)=0



Domain of the equation: x+3)!=0

x∈R



We add all the numbers together, and all the variables

-(5x/x+13.8)+4.2=0

We get rid of parentheses

-5x/x-13.8+4.2=0

We multiply all the terms by the denominator


-5x-(13.8)*x+(4.2)*x=0

We multiply parentheses

-5x-13.8x+4.2x=0

We add all the numbers together, and all the variables

-14.6x=0

x=0/-14.6

x=0

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