SOLUTION: A room contains 144 chairs. the number of chairs per row is two less than twice the number of rows. find the number rows and the number of chairs per row. How would you solve this?

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Question 228269: A room contains 144 chairs. the number of chairs per row is two less than twice the number of rows. find the number rows and the number of chairs per row. How would you solve this? Thank you for any help you can give.
Answer by JenniferTutors(83) About Me  (Show Source):
You can put this solution on YOUR website!
Here's how I worked this problem:
144 Chairs
CPR (chairs per row)= 2R - 2
(R=row) (two less than twice the number of rows)
Now, I factored 144 and noticed that 16x9=144
I plugged the 9 into the the equation as 9 rows:
CPR=2%289%29-2
Solve further:
CPR=18-2
CPR=16
So, in there are 16 chairs per row and 9 rows, And those two number multiplied equal 144.