Here is the equation:

Since both decimals are negative, the answer will be positive.
- Negative times Negative = Positive
Divide both sides by -3.9 to leave the variable alone:

r is equal to 4 → r = 4
Answer:1 cup=6 lemonade
X cups= 24 lemonade
Therefore;
x=24/6 × 1 = 4 cups.
Therefore four cups a
Step-by-step explanation:
It is true. I was recently doing this in class