Question

add.
(-7x - 3) + (-2x - 6)

Explanation:

Step1: Group like terms

$(-7x - 2x) + (-3 - 6)$

Step2: Combine x terms

$-7x - 2x = -9x$

Step3: Combine constant terms

$-3 - 6 = -9$

Step4: Combine results

$-9x + (-9) = -9x - 9$

Answer:

$-9x - 9$