3r-8=7r+2

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



3r-8=7r+2

We move all terms to the left:

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

We get rid of parentheses

3r-7r-2-8=0

We add all the numbers together, and all the variables

-4r-10=0

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

-4r=10

r=10/-4

r=-2+1/2

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