What does t equal if -12t-7=-15

Im doing math homework and i dont understand

So tell me....
what does t equal if -12t-7= -15

-12t-7=-15
add 7 to both sides so
-12t=-8
divide -12 from each side
So t= 8/12 because a negative divided by a negative is a positive(:

If you want to find the value of "t" you must get it alone.
First, you must add 7 to both sides: -12t=-8
Then you must divide t and 8 by -12: t=-8/-12
When you have two negatives, it becomes a positive: 8/12
You usually reduce fractions unless your teacher says otherwise. 4 can go into 8 and 12 so: t=2/3

- 12t - 7 = -15, - 12t = -15 + 7 = - 8, t = -8 / - 12 = 2 / 3