Question

Find the two digit number whose tens digit is 4 less than its units digit if the original number is 2 more than 3 times the sum of the digits.

Answer 1

Let u be the magnitude of the units digit.
The following equation can be derived from the problem statement:
10 (u - 4) + u = 2 + 3 (u - 4 + u)
u = 6

The number is 26.

26 = 2 + 3(6 + 2)