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tileer139 tileer139
  • 24-02-2017
  • Mathematics
Answered

an=−5n+90 i dont know it

Verified Answer :

morgeron
morgeron morgeron
  • 24-02-2017

I am guessing your problem should read...

A)  n = -5n + 90    (isolate the variables by adding 5n to each side)
   +5n  +5n
   6n = 90        (since we don't want to know what 6n's are worth, divide by 6)
6n/6 = 90/6
   n = 15

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