SOLUTION: The product of some negative number and 11 less than three times that number is 20. Find the number.

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Question 670237: The product of some negative number and 11 less than three times that number is 20. Find the number.
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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The product of some negative number and 11 less than three times that number is 20.
Find the number.
n(3n-11) = 20
3n^2 - 11n - 20 = 0
Factors to
(3n + 4)(n - 5)
the negative solution is what they want here
3n = -4
n = -4/3
n = -11%2F3
:
:
See if that works, use n = -1.33
-1.33(3(-1.33)-11) = 20
-1.33(-4-11) = 20
-1.33*-15 ~ 20