# Algebra

posted by Raven

The units digit of a two-digit number is two more than four times the tens digit. When the digits are reversed, the new number is thirteen more than three times the original number. What is the original number?

1. Ms. Sue

16

2. Raven

How did you get this answer (what are the steps involved)?

3. Ms. Sue

Two more than four times more than the tens digit
The tens digit cannot be 2, so it must be 1.

4. Raven

What are the algebraic equations you used to find this answer?

5. Ms. Sue

I didn't use any algebraic equations.

6. Raven

Oh, well...do you think you'd be able to come up with any?

7. Ms. Sue

8. Ms. Sue

4x + 2 < 9

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