B I’m guessing, never really worked with something like this before though
The lnl is an absolute number which basically means it's positive regardless
So now its 7n-7=14
Simply add the 7 to the 14 to get it off the 7n side so you can simplify
Now it's 7n=21
Now just divide
21/7=3
3=N
That means 7 times N=21
To do this you have to divide 135 miles by 5 hours. You will get the answer of 27 miles per hour.
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