Let's use the variable x to represent the number of miles Michell walks every day.
If she walks this same amount for 7 days, the total distance will be 7 times x.
Then, we have an extra of 5 miles in the weekend, so the total distance walked is 7x + 5.
If we know that the total distance is 26 miles, we have the equation:
Solving the equation, we have:
So she walked 3 miles each day.