Answer:
i cant see it
Step-by-step explanation:

This is equal to:

When you add a negative number, it turns into subtraction.
First, I would change it to mixed numbers:

Now, you need to change the denominators to make sure they are the same on both fractions. I changed the first fraction's denominator to 4 so they match. You can do this by multiplying the numerator by 2:

Now, you simply subtract:
10-9=1
1/4 is your answer.
I hope this helps :)
There are 85 candy bars in each box, and he will have 340 candy bars left after he gives three boxes to a friend.
The lines are in the same plane but never intersect