Let's assume that Triana will travel x miles on each of the remaining three days.

On the first day, Triana traveled 24 miles.
Over the remaining three days, she will travel a total of 3x miles.

So the equation that represents this situation can be written as:
24 + 3x = 120

To solve for x, we first subtract 24 from both sides of the equation:
3x = 120 - 24
3x = 96

Next, we divide both sides of the equation by 3 to isolate x:
x = 96 / 3
x = 32

Therefore, Triana will travel 32 miles on each of the remaining three days.

Sentence explaining the answer:
Triana will travel 32 miles on each of the remaining three days, in order to have an equal amount of distance traveled on each day and reach the total distance of 120 miles. can you make this sound like a 7th grader

Triana already traveled 24 miles on the first day. Now we need to figure out how many miles she needs to travel each day for the next three days so that she reaches a total of 120 miles. We can call that number "x". So, our equation is 24 + 3x = 120. To solve for x, we have to get rid of the 24 on one side. We do that by subtracting 24 from both sides of the equation. That gives us 3x = 120 - 24, which is 96. Now, to find out what x is, we divide both sides of the equation by 3. So, x equals 96 divided by 3, which is 32. That means Triana needs to travel 32 miles each day for the next three days.