-9=r/9-10

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Solution for -9=r/9-10 equation:



-9=r/9-10
We move all terms to the left:
-9-(r/9-10)=0
We get rid of parentheses
-r/9+10-9=0
We multiply all the terms by the denominator
-r+10*9-9*9=0
We add all the numbers together, and all the variables
-1r+9=0
We move all terms containing r to the left, all other terms to the right
-r=-9
r=-9/-1
r=+9

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