To distribute the minus sign outside the parentheses, we multiply each term inside the parentheses by -1.
Starting with the expression:
\[ -(0.7g + 6h) - 0.4 \]
Distributing the minus sign gives us:
\[ -0.7g - 6h - 0.4 \]
So, the equivalent expression is:
\[ -0.7g - 6h - 0.4 \]