SOLUTION: I need the steps to slice 1-(r+2)=9

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Question 790373: I need the steps to slice 1-(r+2)=9
Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
to slice...?
Please repost with a clear and complete question :)

if you mean solve, then...
1-r-2=9
1-2-9=r
r=-10