7-3r=2r-8=4r

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Solution for 7-3r=2r-8=4r equation: 



7-3r=2r-8=4r

We move all terms to the left:

7-3r-(2r-8)=0

We get rid of parentheses

-3r-2r+8+7=0

We add all the numbers together, and all the variables

-5r+15=0

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

-5r=-15

r=-15/-5

r=+3

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