4/13r=6.5

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Solution for 4/13r=6.5 equation: 



4/13r=6.5

We move all terms to the left:

4/13r-(6.5)=0



Domain of the equation: 13r!=0

r!=0/13

r!=0

r∈R



We add all the numbers together, and all the variables

4/13r-6.5=0

We multiply all the terms by the denominator


-(6.5)*13r+4=0

We multiply parentheses

-84.5r+4=0

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

-84.5r=-4

r=-4/-84.5

r=1/21.125

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