Respuesta :
I'm not quite sure if this is correct but
d = 1
8d +d = 9d
the you have 1 and 7 + 1 = 8
hope this helps :)
d = 1
8d +d = 9d
the you have 1 and 7 + 1 = 8
hope this helps :)
Answer:
Step-by-step explanation:
Sample Response: 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.