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