Question

find all possible values of x for which the number 7x3 is divisible by 3

Answer 1

we know the property of divisibilty of 3 is that sum of digit of given number should be divisible by three so 1st possible digit is that is 7+3+2=12/3=4 it is 2
2nd 5= 7+3+5=15/5=3
3rd is8 = 7+3+8=18/3=6