9=r-27

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Solution for 9=r-27 equation:



9=r-27
We move all terms to the left:
9-(r-27)=0
We get rid of parentheses
-r+27+9=0
We add all the numbers together, and all the variables
-1r+36=0
We move all terms containing r to the left, all other terms to the right
-r=-36
r=-36/-1
r=+36

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