Step-by-step explanation:
Simplify the expression by using the Distributive Property.
For this expression, we'll be distributing. In simpler terms, multiplying 3 into the values inside the parentheses.
Think of the expression as;
[tex]3(3a-6)=(3 \times3a)+(3 \times -6)[/tex]
Multiply;
[tex]3 \times 3a=9a[/tex] (Multiply the whole number.)
[tex]3 \times -6=-18[/tex]
Your simplified expression is [tex]9a-18.[/tex]