1. **State the problem:** Adam has a rectangular piece of cloth 6 feet wide and 7 feet long. He cuts out a square that is 3 feet wide. We need to find the area of the cloth left. 2. **Formula for area of rectangle:** $$\text{Area} = \text{length} \times \text{width}$$ 3. **Calculate the area of the original cloth:** $$6 \times 7 = 42$$ square feet 4. **Calculate the area of the square cut out:** $$3 \times 3 = 9$$ square feet 5. **Calculate the area of cloth left:** $$42 - 9 = 33$$ square feet 6. **Answer:** The area of the cloth left is **33 square feet**.