-16=1+r

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Solution for -16=1+r equation: 



-16=1+r

We move all terms to the left:

-16-(1+r)=0

We add all the numbers together, and all the variables

-(r+1)-16=0

We get rid of parentheses

-r-1-16=0

We add all the numbers together, and all the variables

-1r-17=0

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

-r=17

r=17/-1

r=-17

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