12(r-6)=12(r-9)

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Solution for 12(r-6)=12(r-9) equation: 



12(r-6)=12(r-9)

We move all terms to the left:

12(r-6)-(12(r-9))=0

We multiply parentheses

12r-(12(r-9))-72=0



We calculate terms in parentheses: -(12(r-9)), so:

12(r-9)

We multiply parentheses

12r-108

Back to the equation:

-(12r-108)



We get rid of parentheses

12r-12r+108-72=0

We add all the numbers together, and all the variables

36!=0

There is no solution for this equation

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