SOLUTION: If 9 is added to twice a number and this sum is multiplied by 5, the result is the same as if the number is multiplied by 4 and 9 is added to the product. What is the number?

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Question 410457: If 9 is added to twice a number and this sum is multiplied by 5, the result is the same as if the number is multiplied by 4 and 9 is added to the product. What is the number?
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
5(9+ 2x) = 4x+ 9
45 + 10x = 4x + 9
6x = 9-45
6x = -36
x = -6.