Question 131031
Translate "one-third of a number is 5 less than half of the same number" into maths equation.

Let a be the number. 

a/3 = a/2 - 5

a/3 = (a-10)/2

2a = 3a - 30

a = 30.

To check the solution:

a/3 = 30/3 = 10

a/2 = 30/2 = 15

so one third of 30 is 5 less than half of 30.