r+8r/2=9

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Solution for r+8r/2=9 equation: 



r+8r/2=9

We move all terms to the left:

r+8r/2-(9)=0

We multiply all the terms by the denominator


r*2+8r-9*2=0

We add all the numbers together, and all the variables

8r+r*2-18=0

Wy multiply elements

8r+2r-18=0

We add all the numbers together, and all the variables

10r-18=0

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

10r=18

r=18/10

r=1+4/5

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