4+7r=8r-2

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Solution for 4+7r=8r-2 equation: 



4+7r=8r-2

We move all terms to the left:

4+7r-(8r-2)=0

We get rid of parentheses

7r-8r+2+4=0

We add all the numbers together, and all the variables

-1r+6=0

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

-r=-6

r=-6/-1

r=+6

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