16=1-8r-7r

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Solution for 16=1-8r-7r equation: 



16=1-8r-7r

We move all terms to the left:

16-(1-8r-7r)=0

We add all the numbers together, and all the variables

-(-15r+1)+16=0

We get rid of parentheses

15r-1+16=0

We add all the numbers together, and all the variables

15r+15=0

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

15r=-15

r=-15/15

r=-1

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