(3-r)-3r=-6

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Solution for (3-r)-3r=-6 equation: 



(3-r)-3r=-6

We move all terms to the left:

(3-r)-3r-(-6)=0

We add all the numbers together, and all the variables

(-1r+3)-3r-(-6)=0

We add all the numbers together, and all the variables

-3r+(-1r+3)+6=0

We get rid of parentheses

-3r-1r+3+6=0

We add all the numbers together, and all the variables

-4r+9=0

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

-4r=-9

r=-9/-4

r=2+1/4

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