8r=-9-r

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Solution for 8r=-9-r equation:



8r=-9-r
We move all terms to the left:
8r-(-9-r)=0
We add all the numbers together, and all the variables
8r-(-1r-9)=0
We get rid of parentheses
8r+1r+9=0
We add all the numbers together, and all the variables
9r+9=0
We move all terms containing r to the left, all other terms to the right
9r=-9
r=-9/9
r=-1

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