Answer:
Steve walked 7 miles and Tammy walked 2 miles.
Step-by-step explanation:
Okie dokie, so we know that there is a total of 9 miles between them.
Now, let's call the miles walked by Tammy, m.
We also know that Steve walked 2 times the amount Tammy walked plus another 3 miles, so we can label his as, 2m + 3.
Now, let's put that all together into an equation:
9 = 2m + 3 + m
The first thing we have to do is isolate the variable, so we subtract 3 from both sides:
6 = 2m + m
Now we combine the like variables:
6 = 3m
Now in order to determine the variable, we divide by 3 on both sides:
M = 2
So we now know that Tammy walked 2 miles, but we're not done yet.
Because Steve walked 2x as much, we multiply 2 by 2 to get 4 miles.
Finally, we have to add the 3 extra miles, so we get a total of 7 miles.
Hope this helps! :)
