-8-8+r=12+8r

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Solution for -8-8+r=12+8r equation: 



-8-8+r=12+8r

We move all terms to the left:

-8-8+r-(12+8r)=0

We add all the numbers together, and all the variables

r-(8r+12)-8-8=0

We add all the numbers together, and all the variables

r-(8r+12)-16=0

We get rid of parentheses

r-8r-12-16=0

We add all the numbers together, and all the variables

-7r-28=0

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

-7r=28

r=28/-7

r=-4

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