r+r/4=9

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Solution for r+r/4=9 equation: 



r+r/4=9

We move all terms to the left:

r+r/4-(9)=0

We multiply all the terms by the denominator


r*4+r-9*4=0

We add all the numbers together, and all the variables

r+r*4-36=0

Wy multiply elements

r+4r-36=0

We add all the numbers together, and all the variables

5r-36=0

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

5r=36

r=36/5

r=7+1/5

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