Question

1. simplify -2 + 6.45z - 6 + (-3.25z).

Explanation:

Step1: Rewrite to group like terms

$-2 - 6 + 6.45z + (-3.25z)$

Step2: Combine constant terms

$-2 - 6 = -8$

Step3: Combine variable terms

$6.45z - 3.25z = 3.2z$

Step4: Combine results

$-8 + 3.2z$

Answer:

$-8 + 3.2z$