8/r=-18

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Solution for 8/r=-18 equation: 



8/r=-18

We move all terms to the left:

8/r-(-18)=0



Domain of the equation: r!=0

r∈R



We add all the numbers together, and all the variables

8/r+18=0

We multiply all the terms by the denominator


18*r+8=0

We add all the numbers together, and all the variables

18r+8=0

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

18r=-8

r=-8/18

r=-4/9

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