Answer:
The correct option is C.
Step-by-step explanation:
The given equation is
[tex]p+9=25[/tex] .... (1)
and
[tex]p=q[/tex] ...(2)
According to the substitution property of equality, if we have two equation then we can substitute the values form one equation to another equation.
Equation 2 represent that the value p and q are equal.
Using substitution property of equality the first equation can be written as
[tex]q+9=25[/tex] [tex][\because p=q][/tex]
Therefore Michaela use substitution property of equality and option C is correct.
