SOLUTION: I am thinking of an interesting 5-digit number. When it has a �1� after it, it�s 3 times as large as when it has a �1� before it. What is the number?

Question 306781: I am thinking of an interesting 5-digit number.
When it has a �1� after it, it�s 3 times as large as when it has a �1� before it. What is the number?
Answer by Stitch(470) (Show Source): You can put this solution on YOUR website!
A 1 in front of the number is the same as adding 100,000 to the number.
A 1 behind the number is the same as multiplying the number by 10 and then adding 1.
So the equation is:
Simplify the equation
Subtract 1 from both sides
Subtract 3X from both sides
Divide both sides by 7

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