SOLUTION: I am a two digit number. My ones and tens digits are the same. The sum of my digits is 8. What number am I?

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Question 9838: I am a two digit number. My ones and tens digits are the same. The sum of my digits is 8. What number am I?
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
Let x = ten's digit

Since the sum of the digits is 8, that makes the unit's digit to be 8-x.

The equation is in the second sentence, which says that the ones and tens digits are the same. This means that:
x = 8-x

Add x to each side:
x+x = 8-x +x
2x = 8
x= 4
8-x= 4.

Therefore the number is 44.

R^2 at SCC