(8+r)+(-4r)=0

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Solution for (8+r)+(-4r)=0 equation: 



(8+r)+(-4r)=0

We add all the numbers together, and all the variables

(r+8)+(-4r)=0

We get rid of parentheses

r-4r+8=0

We add all the numbers together, and all the variables

-3r+8=0

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

-3r=-8

r=-8/-3

r=2+2/3

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