Determine the Missing Amount "X" for Each of the Following

Short Answer

Determine the missing amount "X" for each of the following:
$\begin{array}{|l|l|l|}\hline \text { Assets } & \text { Liabilities } & \text { Shareholders' Equity } \\\hline \text { a. } \$ 85,700 & \$ 40,000 & \mathrm{X} \\\hline \text { b. } \mathrm{X} & \$ 66,570 & \$ 145,000 \\\hline \text { c. } \$ 57,900 & \mathrm{X} & \$ 34,000 \\\hline\end{array}$