I plan to read 164 pages every week, which means 164/7 every day. (164 of 7, which cannot be removed by light)

I watched it for five days, 2 1 page more than planned. That is 164/7*5+2 1.

5x= 164/7*5+2 1

5x=967/7

x=967/35

Answer ............... to exercise.