12r+9=3/5(15r-20)

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Solution for 12r+9=3/5(15r-20) equation: 



12r+9=3/5(15r-20)

We move all terms to the left:

12r+9-(3/5(15r-20))=0



Domain of the equation: 5(15r-20))!=0

r∈R



We multiply all the terms by the denominator


12r*5(15r-20))-(3+9*5(15r-20))=0

Wy multiply elements

60r^2(1+45r(1=0

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