Question

add, (-2f - 7) + (4f - 4)

Explanation:

Step1: Remove parentheses

Since there are plus signs in front of the parentheses, the terms inside remain as they are. We get $-2f - 7+4f - 4$.

Step2: Combine like - terms

Combine the $f$ terms and the constant terms. The $f$ terms are $-2f$ and $4f$, and the constant terms are $-7$ and $-4$.
For the $f$ terms: $-2f + 4f=(-2 + 4)f = 2f$.
For the constant terms: $-7-4=-11$.

Answer:

$2f - 11$