-2/x-7=5/x+21

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Solution for -2/x-7=5/x+21 equation: 



-2/x-7=5/x+21

We move all terms to the left:

-2/x-7-(5/x+21)=0



Domain of the equation: x!=0

x∈R





Domain of the equation: x+21)!=0

x∈R



We get rid of parentheses

-2/x-5/x-21-7=0

We multiply all the terms by the denominator


-21*x-7*x-2-5=0

We add all the numbers together, and all the variables

-28x-7=0

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

-28x=7

x=7/-28

x=-1/4

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