SOLUTION: When you use text-based communication, how do I interpert the expression sqrt xy + 9? What is xy + 9 if x=7 and y = 4

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Question 3393: When you use text-based communication, how do I interpert the expression sqrt xy + 9? What is xy + 9 if x=7 and y = 4
Answer by longjonsilver(2297) About Me  (Show Source):
You can put this solution on YOUR website!
when you say solve, i hope you mean re-write the equation?

I(nr+R) = nE
Inr + IR = nE
Inr + IR - nE = 0
Inr - nE = -IR
n(Ir - E) = -IR
n+=+%28-IR%29%2F%28Ir+-+E%29

or, being snazzy...

n+=+%28IR%29%2F%28E+-+Ir%29
jon