Answer:
25
Explanation:
So if we know that the sum of the digits is 7, we can start with an equation.
t + o = 7, where t is the tens place digit, and o is the ones place.
If t is three less than o, we can make a second equation to represent this.
t + 3 = o
So, we can take the 3 off of 7, giving us 4. Now, we can divide 4 by 2, because there are two digits to solve for.
4 / 2 is 2
t = 2
o = t + 3
o = 2 + 3
o = 5
The number is 25.