1-9r=-10r

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Solution for 1-9r=-10r equation: 



1-9r=-10r

We move all terms to the left:

1-9r-(-10r)=0

We get rid of parentheses

-9r+10r+1=0

We add all the numbers together, and all the variables

r+1=0

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

r=-1

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