x=21 and the hint is a factor of 3 find x
it's easy the answer is 7 as all you have to do is to find is 21 divided by the factor given which is 21 divided by 3 which gives you 7
+37146 I think the answer is 21 7 is not a factor of 3 and if you used x=7 then your equation would be 7 = 21 not true!
