SOLUTION: If 63 equal to 6 times a certain number, increased by 15, find the number.

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Question 1108356: If 63 equal to 6 times a certain number, increased by 15, find the number.
Answer by addingup(3677) About Me  (Show Source):
You can put this solution on YOUR website!
Let's write the equation exactly the way the problem says, I'll call the "certain number" x:
63 = 6x + 15 subtract 15 from both sides
48 = 6x flip the equation so we have the unknown on the left:
6x = 48 divide both sides by 6:
x = 8