2.1/x+9/5=3/10x

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Solution for 2.1/x+9/5=3/10x equation: 



2.1/x+9/5=3/10x

We move all terms to the left:

2.1/x+9/5-(3/10x)=0



Domain of the equation: x!=0

x∈R





Domain of the equation: 10x)!=0

x!=0/1

x!=0

x∈R



We add all the numbers together, and all the variables

2.1/x-(+3/10x)+9/5=0

We get rid of parentheses

2.1/x-3/10x+9/5=0

We calculate fractions


90x^2/250x^2+(2.1*10x*5)/250x^2+(-75x)/250x^2=0

We add all the numbers together, and all the variables

90x^2/250x^2+(+2.1*10x*5)/250x^2+(-75x)/250x^2=0

We multiply all the terms by the denominator


90x^2+(+2.1*10x*5)+(-75x)=0

We get rid of parentheses

90x^2+2.1*10x*5-75x=0

We add all the numbers together, and all the variables

90x^2-75x+2.1*10x*5=0

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