7r=8+4r

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Solution for 7r=8+4r equation: 



7r=8+4r

We move all terms to the left:

7r-(8+4r)=0

We add all the numbers together, and all the variables

7r-(4r+8)=0

We get rid of parentheses

7r-4r-8=0

We add all the numbers together, and all the variables

3r-8=0

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

3r=8

r=8/3

r=2+2/3

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