5=-r+8

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Solution for 5=-r+8 equation: 



5=-r+8

We move all terms to the left:

5-(-r+8)=0

We add all the numbers together, and all the variables

-(-1r+8)+5=0

We get rid of parentheses

1r-8+5=0

We add all the numbers together, and all the variables

r-3=0

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

r=3

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