Answer:
x = 4
Step-by-step explanation:
11x - 7x = 16
11x - 7x = 4x
16 divided by 4 = 4x
So, 672 miles divided by 56 miles per hour = 12 hours
Answer:
Step-by-step explanation:
Answer:

Step-by-step explanation:
First, we change both denominators to the LCM (lowest common multiple) which is 8.

Since the denominators are the same, we can add the numerators.


or it can be written as

You would subtract 52-7 and your answer would be 45