For Each of the Following Transactions, Identify the Effects as Reflected

For each of the following transactions, identify the effects as reflected in the accounting equation. Use "+" to indicate an increase and "-" to indicate a decrease. Use "A", "L", and "E" to indicate assets, liabilities, and equity, respectively. Part A has been completed as an example.
$$\begin{array} {| c | l | l | l |} \hline\text { a. } & \begin{array} { l } \text { L. Chester invested \$100,000 in a sole } \\\text { proprietor ship }\end{array} & + \text { A } & + \mathrm { E } \\\hline \text { b. } & \begin{array} { l } \text { Land was purchased for \$50,000. } \\\text { A down payment of \$15,000 cash was } \\\text { made and a note was signed for the } \\\text { balance. }\end{array} & & \\\hline \text { c. } & \begin{array} { l } \text { Services were rendered to customers for } \\\text { cash } \end{array} & & \\\hline \text { d. } & \text { A building was purchased for cash } & & \\\hline \text { e. } & \text { Supplies were purchased for cash } & & \\\hline \text { f. } & \text { Paid the offee secretary's salary. } & & \\\hline \text { g. } & \begin{array} { l } \text { The amount owed on the land from Part } \\\text { b) was paid. }\end{array} & & \\\hline\end{array}$$