Peter F. answered 03/05/21
K-12 American History Teacher; 18 Years' Teaching Experience
Hello Alyssa,
3(3+8d) = 9 + 24d
First, multiply 3 x 3
Second, multiply 3 x 8d
Third, add the two products together, as shown in the solution above.
The procedures involved in this equation here include the Distributive Property of Multiplication, as well as FOIL (First Outer Inner Last).
Let me know if you have any questions! I hope this helps!