In the equation \( 5.6(n + 1.42) = 7.8 \), the first step is to divide both sides by \( 5.6 \) to isolate the term containing \( n \).
So the second step, after dividing, would be to:
- Subtract \( 1.42 \) from both sides of the resulting equation to solve for \( n \).
Thus, the correct answer from your options for the second step is subtract 1.42 from both sides.