12r-5(r-1)=12+6

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Solution for 12r-5(r-1)=12+6 equation: 



12r-5(r-1)=12+6

We move all terms to the left:

12r-5(r-1)-(12+6)=0

We add all the numbers together, and all the variables

12r-5(r-1)-18=0

We multiply parentheses

12r-5r+5-18=0

We add all the numbers together, and all the variables

7r-13=0

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

7r=13

r=13/7

r=1+6/7

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