-7r+1=10-10r

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Solution for -7r+1=10-10r equation: 



-7r+1=10-10r

We move all terms to the left:

-7r+1-(10-10r)=0

We add all the numbers together, and all the variables

-7r-(-10r+10)+1=0

We get rid of parentheses

-7r+10r-10+1=0

We add all the numbers together, and all the variables

3r-9=0

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

3r=9

r=9/3

r=3

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