7r-8=-80-5r

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Solution for 7r-8=-80-5r equation: 



7r-8=-80-5r

We move all terms to the left:

7r-8-(-80-5r)=0

We add all the numbers together, and all the variables

7r-(-5r-80)-8=0

We get rid of parentheses

7r+5r+80-8=0

We add all the numbers together, and all the variables

12r+72=0

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

12r=-72

r=-72/12

r=-6

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