Answer:
Use the associative property to move the parentheses, and the expression becomes (d + 8d) + 1 + 7. Combine like terms, and the expression becomes 9d +8. Use the commutative property to change the order of the terms, and the expression becomes 8 + 9d.
Step-by-step explanation:
Answer:
Copy and paste this! ~~~~~~~~~~~~~~
If you use the associative property to move the parentheses and combine like terms, the expression becomes 9d +8. Last, use the commutative property to switch the order places.
