3/5=21-7x/x

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Solution for 3/5=21-7x/x equation: 



3/5=21-7x/x

We move all terms to the left:

3/5-(21-7x/x)=0



Domain of the equation: x)!=0

x!=0/1

x!=0

x∈R



We add all the numbers together, and all the variables

-(-7x/x+21)+3/5=0

We get rid of parentheses

7x/x-21+3/5=0

We calculate fractions


35x/5x+3x/5x-21=0

We multiply all the terms by the denominator


35x+3x-21*5x=0

We add all the numbers together, and all the variables

38x-21*5x=0

Wy multiply elements

38x-105x=0

We add all the numbers together, and all the variables

-67x=0

x=0/-67

x=0

Równanie nie ma rozwiązania

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