Answer:
-5
Step-by-step explanation:
imagine a numberline like
-13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2- 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13
see how its negative (-) and positive numbers
look at the number 7 and count back 12 to the left.
It's -7
3/21 most simplest form is 1/7
C.
I can explain in comments if needed, but c is the correct answer :)
C
