I am a number with 2 more tens than one. I have 5 mores ones than hundreds. the sum of my digits is 18. What number I am?

Answer 1

X Ones.
(X+2) Tens.
(X-5) Hundreds.

X + (X+2) + (X-5) = 18
3x + 2 - 5 = 18
3x = 21
X = 7 Ones.
X+2 = 9 Tens.
X-5 = 2 Hundreds.
N = 297.