9r-3r-4=2

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Solution for 9r-3r-4=2 equation: 



9r-3r-4=2

We move all terms to the left:

9r-3r-4-(2)=0

We add all the numbers together, and all the variables

6r-6=0

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

6r=6

r=6/6

r=1

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