Solution:
1. Start with the given equation:
8x + 5 = 3x + 20
2. Subtract 3x from both sides to isolate terms involving x on one side:
8x - 3x + 5 = 20
3. Simplify the left side:
5x + 5 = 20
4. Subtract 5 from both sides to isolate the term involving x:
5x = 15
5. Divide both sides by 5 to solve for x:
x = 3