Question

The sum of the digits of a two-digit number is 7. If the digits are reversed the number is increased by 27. What is the number?

Answer 1

x + y = 7 10y + x = 10x + y + 27

Answer 2

This is a system of 2 equations in 2 variables and can now be solved by either substitution or elimination.

Answer 3

Thank you. I just did not know how to set it up. It makes sense now.

Answer 4

Your end-result number will look like "x""y". You're welcome!

Answer 5

So I am getting y=5 and x=2. Therefore the numbers are 25 and 52

Answer 6

Good work! You got it right!

Answer 7

Thank you!!

Answer 8

You're welcome!