r-3=4r+7

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Solution for r-3=4r+7 equation: 



r-3=4r+7

We move all terms to the left:

r-3-(4r+7)=0

We get rid of parentheses

r-4r-7-3=0

We add all the numbers together, and all the variables

-3r-10=0

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

-3r=10

r=10/-3

r=-3+1/3

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