Question

The sum of the digits of a 2-digit number is 7. If the digits are reversed the new number is equal
3 less than 4 times the original number. Find the original number.

Answer 1

Step-by-step explanation:

let digit in the ones place digit bex and digit inthe tens place digit be7-x. therefore the new numbers formed is 10(7-x)+x.the numbers after reversing will be10(x)+7-x.BTP=10(x)+7-x=4(10(7-x)+x)-3.now solve it.