SOLUTION: One number is 5 more than 2 times another. Their product is 18. Find the numbers.

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Question 871467: One number is 5 more than 2 times another. Their product is 18. Find the numbers.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
A=5%2B2B
A%2AB=18
Substituting,
%285%2B2B%29B=18
2B%5E2%2B5B-18=0
%28B-2%29%282B%2B9%29=0
Two solutions:
B-2=0
B=2
Then,
A=18%2F2=9
and
2B%2B9=0
2B=-9
B=-9%2F2
Then,
A=18%2F%28-9%2F2%29=-4