SOLUTION: my ones digit is 3 more than my tens digit, the sum of my digit is 13, what number am I?

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Question 485783: my ones digit is 3 more than my tens digit, the sum of my digit is 13, what number am I?
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

let two-digit number be xy where x=tens and y=ones
given:
y=x%2B3.....1
x%2By=13....2
substitute y from 1
x%2Bx%2B3=13...solve for x
2x=13-3
2x=10
x=5.......tens
y=x%2B3
y=5%2B3
y=8.....ones

so, your number is:
58