16=r-2r+9

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Solution for 16=r-2r+9 equation: 



16=r-2r+9

We move all terms to the left:

16-(r-2r+9)=0

We add all the numbers together, and all the variables

-(-1r+9)+16=0

We get rid of parentheses

1r-9+16=0

We add all the numbers together, and all the variables

r+7=0

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

r=-7

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