6(3.5r)-1=7r-r

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Solution for 6(3.5r)-1=7r-r equation: 



6(3.5r)-1=7r-r

We move all terms to the left:

6(3.5r)-1-(7r-r)=0

We add all the numbers together, and all the variables

6(+3.5r)-(+6r)-1=0

We multiply parentheses

18r-(+6r)-1=0

We get rid of parentheses

18r-6r-1=0

We add all the numbers together, and all the variables

12r-1=0

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

12r=1

r=1/12

r=1/12

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