Question

1. combine like terms.

(-2z - 3) + (4c + 6y) + (7 + 3c)

Explanation:

Step1: Remove parentheses

$-2z - 3 + 4c + 6y + 7 + 3c$

Step2: Group like terms

$-2z + 6y + (4c + 3c) + (-3 + 7)$

Step3: Combine like terms

$-2z + 6y + 7c + 4$

Step4: Rearrange terms (optional, standard order)

$7c + 6y - 2z + 4$

Answer:

$7c + 6y - 2z + 4$