8/7r-5=1/7r

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Solution for 8/7r-5=1/7r equation: 



8/7r-5=1/7r

We move all terms to the left:

8/7r-5-(1/7r)=0



Domain of the equation: 7r!=0

r!=0/7

r!=0

r∈R





Domain of the equation: 7r)!=0

r!=0/1

r!=0

r∈R



We add all the numbers together, and all the variables

8/7r-(+1/7r)-5=0

We get rid of parentheses

8/7r-1/7r-5=0

We multiply all the terms by the denominator


-5*7r+8-1=0

We add all the numbers together, and all the variables

-5*7r+7=0

Wy multiply elements

-35r+7=0

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

-35r=-7

r=-7/-35

r=1/5

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