3r-7r+3=7

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Solution for 3r-7r+3=7 equation: 



3r-7r+3=7

We move all terms to the left:

3r-7r+3-(7)=0

We add all the numbers together, and all the variables

-4r-4=0

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

-4r=4

r=4/-4

r=-1

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