the tens digits of a two-digit number in two more than the one digit . The number is thirty more than four times the sum of the digits. what is the number?
Let be the tens digit
Let be the ones digit
since the tens digit is two more than the ones digit, we have:
...................(1)
since the number is thirty more than four times the sum of the digits, we have:
...................(2)
thus you need to solve the system of simultaneous equations:
...............................(1)
...........(2)