Explanation:

- To solve the given equation, you need to find which two numbers can be swapped to make the equation equal to 94.

- Option 1: Swap 15 and 5

- New equation: 42 × 5 ÷ 3 + 15 - 5

- Calculation: (42 × 5) ÷ 3 + 15 - 5 = 70 + 15 - 5 = 80

- Result: 80 (not equal to 94)

- Option 2: Swap 5 and 3

- New equation: 42 × 15 ÷ 5 + 6 - 3

- Calculation: (42 × 15) ÷ 5 + 6 - 3 = 126 + 6 - 3 = 129

- Result: 129 (not equal to 94)

- Option 3: Swap 6 and 3

- New equation: 42 × 15 ÷ 6 + 3 - 5

- Calculation: (42 × 15) ÷ 6 + 3 - 5 = 105 + 3 - 5 = 103

- Result: 103 (not equal to 94)

- Option 4: Swap 15 and 6

- New equation: 42 × 6 ÷ 3 + 15 - 5

- Calculation: (42 × 6) ÷ 3 + 15 - 5 = 84 + 15 - 5 = 94

- Result: 94 (correct, matches the desired answer)

- Highlight Correct Answer: Option 4