-8=-9+r/16

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Solution for -8=-9+r/16 equation: 



-8=-9+r/16

We move all terms to the left:

-8-(-9+r/16)=0

We add all the numbers together, and all the variables

-(r/16-9)-8=0

We get rid of parentheses

-r/16+9-8=0

We multiply all the terms by the denominator


-r+9*16-8*16=0

We add all the numbers together, and all the variables

-1r+16=0

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

-r=-16

r=-16/-1

r=+16

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