How correctly to create request with two select?

Task: there are 500 borrowers, some of them have several loans.
In the mysql table there are data 1116 loans of these 500 borrowers. In the g_id column there are values: from 1 to 500, for example, if the value of number 1 has 4 credits, among 1116 records the value of number 1 will be 4 times.

1-select : with delinquency condition, the sample showed 111 (91 with distict),
those. 91 borrowers out of 500 are in the bad group.

2-select : where not the conditions of the 1st select, the sample showed 468 with dist.,

Now it is necessary to make a selection based on the 2nd select, which will be able to show those unique values ​​from the same column that do not have these 91 values ​​(from the 1st select).
as a result: the sample should show 500-91 = 409 values ​​of a good credit.

Tried like this: ("select g_id form(select-2) where not (select-1)") . does not work.

1st select:

 $a=$bank->query("SELECT distinct G_id FROM `prosroc` WHERE (((amount<=1001 and currency='USD') or (amount<=8500 and currency='TJS') and credit_term<=12) and num_overdue>10) or ((((amount<=1001 and currency='USD') or (amount<=8500 and currency='TJS')) and (credit_term between 13 and 24)) and num_overdue>15) or ((((amount<=1001 and currency='USD') or (amount<=8500 and currency='TJS')) and credit_term between 25 and 36) and num_overdue>18) or ((((amount between 1001 and 3001) and currency='USD') or ((amount between 8500 and 24000) and currency='TJS')) and credit_term<=12 and num_overdue>10) or (((((amount between 1001 and 3001) and currency='USD') or ((amount between 8500 and 24000) and currency='TJS')) and (credit_term between 13 and 24)) and num_overdue>15) or (((((amount between 1001 and 3001) and currency='USD') or ((amount between 8500 and 24000) and currency='TJS')) and (credit_term between 25 and 36)) and num_overdue>18) or ((((amount>3001 and currency='USD') or (amount>24000 and currency='TJS')) and (credit_term<=12)) and num_overdue>10) or ((((amount>3001 and currency='USD') or (amount>24000 and currency='TJS')) and (credit_term between 13 and 24)) and num_overdue>15) or ((((amount>3001 and currency='USD') or (amount>24000 and currency='TJS')) and (credit_term between 25 and 36)) and num_overdue>18)"); $a_2=$a->num_rows; echo "Количество плохих кредитов : ".$a_2.";