(9r-3)+6;r=3

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Solution for (9r-3)+6;r=3 equation: 



(9r-3)+6r=3

We move all terms to the left:

(9r-3)+6r-(3)=0

We add all the numbers together, and all the variables

6r+(9r-3)-3=0

We get rid of parentheses

6r+9r-3-3=0

We add all the numbers together, and all the variables

15r-6=0

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

15r=6

r=6/15

r=2/5

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