$$\begin{array}{c}\begin{array}{l}\mathrm{test}\text{\ }\\ \mathrm{ax}+(b=5)\end{array}\\ \frac{200}{4+x}-200-4\\ \underset{b}{\overset{a}{\∑}}c+x\\ \underset{z}{\∯}1+2y+h\end{array}$$