![[Drawing 2022-10-28 10.29.21.excalidraw 1]] ![[20221028102800 2022-10-28 10.45.21.excalidraw]] ![[20221028102800 2022-10-28 11.10.45.excalidraw]] $\frac{(R_1+R_2)\times(R_3+R_4+R_5)}{(R_1+R_2)+(R_{3}+R_4+R_5)}$ $R_{6}+\frac{R_3\times(R_1+R_2+R_4+R_5)}{R_3+(R_1+R_2+R_4+R_5)}$ $R_{6}+\frac{R_3\times(R_1+R_2+R_4+R_5)}{R_3+(R_1+R_2+R_4+R_5)}$