To solve the equation \( 5.6(n + 1.42) = 7.8 \), the first step would be to divide both sides by 5.6 to isolate the expression \( (n + 1.42) \).
So, the second step after this would be to proceed as follows:
- Divide both sides by 5.6: \[ n + 1.42 = \frac{7.8}{5.6} \]
The next step after dividing would typically involve isolating \( n \) by subtracting 1.42 from both sides.
Therefore, the correct second step is: Subtract 1.42 from both sides.