5/r-10=7/r+10

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Solution for 5/r-10=7/r+10 equation: 



5/r-10=7/r+10

We move all terms to the left:

5/r-10-(7/r+10)=0



Domain of the equation: r!=0

r∈R





Domain of the equation: r+10)!=0

r∈R



We get rid of parentheses

5/r-7/r-10-10=0

We multiply all the terms by the denominator


-10*r-10*r+5-7=0

We add all the numbers together, and all the variables

-20r-2=0

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

-20r=2

r=2/-20

r=-1/10

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