Anumber is divided by 6. then 8 is added to a quotient. next 3 is subtracted from the sum. the results is 7. what is the number

N = 12

( | = border to separate so it's easier to read.)

n divided by 6 + 8 - 3 |=7
+3 |= 7 + 3

-8 | 10 - 8

x6 | 2 x 6

n = 12
Check!
12 divided by 6 + 8 - 3 = 7 PEMDAS
2 + 8 - 3 = 7
10 - 3 = 7
7 = 7

First