800-(y*8-20)=100 с...

Question

800-(y*8-20)=100 с проверкой!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

8*у -20=700
8*у=720
у=720/8
у=90
проверка:
800-(8*90 - 20)=100
800-(720-20)=100
800- 700=100
100=100