Answer:
(5z + 4) + (3z - 6) = 8z - 2
Step-by-step explanation:
(5z + 4) + (3z - 6)
Combine them by their like terms.
(5z + 3z) + (4 + (-6))
Add 5z and 3z.
8z + (4 + (-6))
Add 4 and -6.
8z + (-2)
Simplify.
8z - 2
