Answer: The answer is
![\textup{x}=(2)/(3)\textup{h}-5.](https://img.qammunity.org/2020/formulas/mathematics/high-school/qf9p97ju6aijbmguq6kygvd6awphk9xs6h.png)
Step-by-step explanation: Given that Kayleigh babysat for 11 hours the present week. Also, this was 5 less than two-third of the number of hours she babysat last week, which is represented by 'h'.
We are to write an equation to represent the number of hours she babysat each week.
So, for that, let 'x' be the number of hours she babysat this week. Then, according to the question, we can write
![\textup{x}=(2)/(3)\textup{h}-5.](https://img.qammunity.org/2020/formulas/mathematics/high-school/qf9p97ju6aijbmguq6kygvd6awphk9xs6h.png)
Also, it is given that
![\textup{x}=11.](https://img.qammunity.org/2020/formulas/mathematics/high-school/nrjcntce6cykyqntp91x5mm0rr4qcfpf77.png)
Therefore,
![11=(2)/(3)\textup{h}-5\\\\\Rightarrow (2)/(3)\textup{h}=16\\\\\Rightarrow \textup{h}=24.](https://img.qammunity.org/2020/formulas/mathematics/high-school/drbc18zb081n4g6fyt3ghuuxm1gi4tx5e1.png)
Hence, using the above relation, we can find the number oh hours Keyleigh babysat each week.
Thus, the required equation is
where, 'x' and 'h' are the number of hours she sat this week and last week respectively.