Answer: l = 2w + 5
Explanation:
The length is five meters more than something. Since the 5 meters more than (addition) comes first, you know it's not going to be in parentheses and is instead going to precede the next term. Right now, your equation should look like
l = 5 + ?
Now, we get to "twice the width." This is the second term, the ? in the previous equation. Two times the width can just be written as 2w, so that's how you're going to express it. In the end, your final equation just comes out to
l = 5 + 2w