Olga tried to solve an equation step by step.

\begin{aligned} \dfrac14\left(\dfrac13k+9\right)&am p;=6 \dfrac13k+9&=24&\green{\tex t{Step } 1} \dfrac13k&=15&\blue{\text{S tep } 2} k&=5&\purple{\text{Step } 3} \end{aligned}

4

1



(

3

1



k+9)

3

1



k+9

3

1



k

k



=6

=24

=15

=5



Step 1

Step 2

Step 3



Find Olga's mistake.