Five times a number is divided by 7 more than the original number. If the result is 2, then what was the original number?
Let the original number==N
5N / [N + 7] ==2, solve for N
Cross multiply
5N ==2N + 14
5N - 2N ==14
3N ==14
N ==14 / 3 ==4 + 2/3 - the original number.
+656 
