We have been given the equation
\(-3(x+2)=9\)
The first steps is given as \(-3x-6=9\)
In this step, Tyra has distributed the term -3 over the parenthesis, as shown below
\(-3(x+2)=9\\-3\cdot x+ (-3)(2)=9\\-3x-6=9\)
We know the distributive property is given by
\(a(b+c)=ab+ac\)
Therefore, we can say that Tyra has used distributive property in the first step.
C is the correct option.
