18+9/2r=-18

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Solution for 18+9/2r=-18 equation: 



18+9/2r=-18

We move all terms to the left:

18+9/2r-(-18)=0



Domain of the equation: 2r!=0

r!=0/2

r!=0

r∈R



We add all the numbers together, and all the variables

9/2r+36=0

We multiply all the terms by the denominator


36*2r+9=0

Wy multiply elements

72r+9=0

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

72r=-9

r=-9/72

r=-1/8

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